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Total Questions: 128
Marks Per Question: 1
Negative Marks: 0.20
MCQ Practice Exam
Q1. Which planet is known as the red planet?
A
Earth
B
Venus
C
Mars
D
Jupiter
Q1. Which planet is known as the red planet?
Ans: Mars
Explanation:
Hint: Named after the god of war. Why: Its surface is covered in iron oxide (rust), giving it a reddish hue.
Q2. Which of these is a producer in a food chain?
A
Lion
B
Rabbit
C
Grass
D
Snake
Q2. Which of these is a producer in a food chain?
Ans: Grass
Explanation:
Hint: It makes its own food. Why: Plants use photosynthesis to create energy from sunlight.
Q3. Which of the following is a mammal?
A
Frog
B
Snake
C
Dolphin
D
Eagle
Q3. Which of the following is a mammal?
Ans: Dolphin
Explanation:
Hint: It breathes air and has hair. Why: Dolphins are warm-blooded vertebrates that nurse their young with milk.
Q4. Largest land animal in the world?
A
Blue whale
B
Rhinoceros
C
Elephant
D
Giraffe
Q4. Largest land animal in the world?
Ans: Elephant
Explanation:
Hint: It has a long trunk. Why: The African Bush Elephant is the largest and heaviest animal living on land.
Q5. Which of these is a healthy food group?
A
Candies
B
Fruits/Veg
C
Soft drinks
D
Chips
Q5. Which of these is a healthy food group?
Ans: Fruits/Veg
Explanation:
Hint: Natural and colorful. Why: They provide essential vitamins, minerals, and fiber for the body.
Q6. Which is a source of renewable energy?
A
Coal
B
Charcoal
C
Natural gas
D
Solar power
Q6. Which is a source of renewable energy?
Ans: Solar power
Explanation:
Hint: Comes from the sky. Why: It is derived from the sun, which is an inexhaustible resource.
Q7. Largest organ in the human body?
A
Brain
B
Heart
C
Skin
D
Liver
Q7. Largest organ in the human body?
Ans: Skin
Explanation:
Hint: It covers you. Why: The skin protects the entire exterior of the body and regulates temperature.
Q8. Sense organ used for hearing?
A
Eye
B
Nose
C
Ear
D
Tongue
Q8. Sense organ used for hearing?
Ans: Ear
Explanation:
Hint: Found on the side of the head. Why: It contains structures that capture and process sound waves.
Q9. Animals that eat only plants?
A
Carnivores
B
Omnivores
C
Herbivores
D
Decomposers
Q9. Animals that eat only plants?
Ans: Herbivores
Explanation:
Hint: Think of a cow. Why: Their digestive systems are specifically evolved to process plant matter.
Q10. Teeth used for tearing food?
A
Incisors
B
Canines
C
Molars
D
Premolars
Q10. Teeth used for tearing food?
Ans: Canines
Explanation:
Hint: Pointy like a dog's. Why: These are sharp, pointed teeth designed for gripping and ripping.
Q11. Main source of light/heat for Earth?
A
Moon
B
Stars
C
Sun
D
Fire
Q11. Main source of light/heat for Earth?
Ans: Sun
Explanation:
Hint: The biggest star nearby. Why: It is the center of our solar system and provides all solar energy.
Q12. Which is a vertebrate animal?
A
Jellyfish
B
Earthworm
C
Fish
D
Sponge
Q12. Which is a vertebrate animal?
Ans: Fish
Explanation:
Hint: It has a backbone. Why: Fish belong to the group of animals with a spinal column.
Q13. Which gas do humans breathe out?
A
Oxygen
B
Nitrogen
C
Carbon dioxide
D
Helium
Q13. Which gas do humans breathe out?
Ans: Carbon dioxide
Explanation:
Hint: Plants "breathe" this in. Why: It is a waste product of cellular respiration expelled by the lungs.
Q14. Which is a push or a pull?
A
Energy
B
Work
C
Force
D
Power
Q14. Which is a push or a pull?
Ans: Force
Explanation:
Hint: Needed to move things. Why: In physics, a force is any interaction that changes the motion of an object.
Q15. Tool used to measure temperature?
A
Ruler
B
Scale
C
Thermometer
D
Stopwatch
Q15. Tool used to measure temperature?
Ans: Thermometer
Explanation:
Hint: Used when you have a fever. Why: It uses sensors or liquid to measure thermal energy.
Q16. Which animal lays eggs?
A
Cow
B
Dog
C
Chicken
D
Cat
Q16. Which animal lays eggs?
Ans: Chicken
Explanation:
Hint: Makes an omelet. Why: As a bird, it reproduces by laying hard-shelled eggs.
Q17. Sense organ for taste?
A
Nose
B
Skin
C
Tongue
D
Eye
Q17. Sense organ for taste?
Ans: Tongue
Explanation:
Hint: Inside the mouth. Why: It is covered in taste buds that detect different flavors.
Q18. Tallest mountain in the world?
A
Annapurna
B
Gurisangar
C
Juggle
D
Mt. Everest
Q18. Tallest mountain in the world?
Ans: Mt. Everest
Explanation:
Hint: Located in the Himalayas. Why: Its peak is the highest point above sea level (8,848m).
Q19. Largest plateau in the world?
A
Columbia
B
Deccan
C
Tibetan
D
Deccan
Q19. Largest plateau in the world?
Ans: Tibetan
Explanation:
Hint: "Roof of the World." Why: It is the highest and largest plateau, covering most of Tibet.
Q20. Planet with the giant red spot?
A
Mercury
B
Venus
C
Uranus
D
Jupiter
Q20. Planet with the giant red spot?
Ans: Jupiter
Explanation:
Hint: The biggest planet. Why: The spot is a massive, centuries-old storm in its atmosphere.
Q21. Which planet is the smallest?
A
Jupiter
B
Saturn
C
Mercury
D
Venus
Q21. Which planet is the smallest?
Ans: Mercury
Explanation:
Hint: Closest to the sun. Why: It is the smallest of the eight major planets in our solar system.
Q22. Largest ocean on Earth?
A
Atlantic
B
Pacific
C
Arctic
D
Southern
Q22. Largest ocean on Earth?
Ans: Pacific
Explanation:
Hint: Touches Asia and America. Why: It covers about one-third of the Earth's total surface.
Q23. Land of the Rising Sun?
A
Germany
B
Japan
C
Nepal
D
Norway
Q23. Land of the Rising Sun?
Ans: Japan
Explanation:
Hint: An island nation in Asia. Why: The name "Nippon" literally translates to "sun origin."
Q24. 'Ship of the Desert'?
A
Cow
B
Buffalo
C
Camel
D
Horse
Q24. 'Ship of the Desert'?
Ans: Camel
Explanation:
Hint: Has humps. Why: It can carry heavy loads across sand with very little water.
Q25. Largest mammal in the world?
A
Blue whale
B
Elephant
C
African elephant
D
Whale shark
Q25. Largest mammal in the world?
Ans: Blue whale
Explanation:
Hint: Lives in the ocean. Why: It is the largest animal known to have ever lived (up to 30m).
Q26. Smallest country in the world?
A
Vatican City
B
Monaco
C
San Marino
D
Malta
Q26. Smallest country in the world?
Ans: Vatican City
Explanation:
Hint: Inside Rome, Italy. Why: It is an independent city-state covering only 121 acres.
Q27. Most populous country?
A
China
B
India
C
USA
D
Indonesia
Q27. Most populous country?
Ans: India
Explanation:
Hint: Located in South Asia. Why: As of 2023, India officially surpassed China in total population.
Q28. Deepest ocean?
A
Pacific
B
Atlantic
C
Indian
D
Arctic
Q28. Deepest ocean?
Ans: Pacific
Explanation:
Hint: Same as the largest ocean. Why: It contains the Mariana Trench, the deepest point on Earth.
Q29. Highest waterfall in the world?
A
Angel Falls
B
Niagara
C
Victoria
D
Iguazu
Q29. Highest waterfall in the world?
Ans: Angel Falls
Explanation:
Hint: In Venezuela. Why: It has an uninterrupted drop of 979 meters.
Q30. Tallest building in the world?
A
Burj Khalifa
B
Shanghai Tower
C
Abraj Al Bait
D
One World
Q30. Tallest building in the world?
Ans: Burj Khalifa
Explanation:
Hint: Located in Dubai. Why: It stands at a record-breaking height of 828 meters.
Q31. Most abundant gas in air?
A
Nitrogen
B
Oxygen
C
Argon
D
CO2
Q31. Most abundant gas in air?
Ans: Nitrogen
Explanation:
Hint: Not the one we breathe. Why: It makes up about 78% of the Earth's atmosphere.
Q32. Who wrote "Romeo and Juliet"?
A
Shakespeare
B
Jane Austen
C
Dickens
D
Mark Twain
Q32. Who wrote "Romeo and Juliet"?
Ans: Shakespeare
Explanation:
Hint: "The Bard." Why: He was the English playwright who wrote it in the 1590s.
Q33. Who discovered penicillin?
A
A. Fleming
B
L. Pasteur
C
Marie Curie
D
Newton
Q33. Who discovered penicillin?
Ans: A. Fleming
Explanation:
Hint: Found in mold. Why: He discovered the first true antibiotic in 1928.
Q34. First person on the moon?
A
Armstrong
B
Aldrin
C
Gagarin
D
Collins
Q34. First person on the moon?
Ans: Armstrong
Explanation:
Hint: "One small step..." Why: He led the Apollo 11 mission in 1969.
Q35. What is the largest snake in the world?
A
Green anaconda
B
Reticulated python
C
King cobra
D
Boa constrictor
Q35. What is the largest snake in the world?
Ans: Green anaconda
Explanation:
Hint: Found in South American swamps. Why: While the python is longer, the anaconda is the heaviest and bulkiest snake in the world.
Q36. Which animal has the longest lifespan?
A
Bowhead whale
B
Giant tortoise
C
Greenland shark
D
Elephant
Q36. Which animal has the longest lifespan?
Ans: Bowhead whale
Explanation:
Hint: Lives in the cold Arctic. Why: These whales can live over 200 years, though the Greenland shark is also a major contender.
Q37. What is the heaviest land animal?
A
Elephant
B
Hippopotamus
C
White rhino
D
Giraffe
Q37. What is the heaviest land animal?
Ans: Elephant
Explanation:
Hint: It has a trunk and large tusks. Why: The African bush elephant can weigh up to 10 tons (10,000 kg).
Q38. Which animal can hold its breath longest?
A
Sperm whale
B
Sea turtle
C
Beaked whale
D
Penguin
Q38. Which animal can hold its breath longest?
Ans: Beaked whale
Explanation:
Hint: A deep-diving record holder. Why: The Cuvier's beaked whale has recorded dives lasting over 222 minutes.
Q39. What is the most venomous snake?
A
Inland taipan
B
King cobra
C
Black mamba
D
Sea snake
Q39. What is the most venomous snake?
Ans: Inland taipan
Explanation:
Hint: Lives in remote Australia. Why: Its venom is the most toxic of any snake, though it rarely meets humans.
Q40. Which animal has the largest brain?
A
Sperm whale
B
Elephant
C
Orca
D
Dolphin
Q40. Which animal has the largest brain?
Ans: Sperm whale
Explanation:
Hint: Has a massive, square head. Why: Their brain can weigh up to 9 kg (20 lbs), the largest of any animal species.
Q41. Which organ pumps blood?
A
Brain
B
Liver
C
Heart
D
Lungs
Q41. Which organ pumps blood?
Ans: Heart
Explanation:
Hint: Beats in your chest. Why: It acts as a muscular pump to circulate blood and oxygen through the body.
Q42. What is the fastest flying bird?
A
Peregrine falcon
B
Golden eagle
C
Swift
D
Frigatebird
Q42. What is the fastest flying bird?
Ans: Peregrine falcon
Explanation:
Hint: Dives like a missile. Why: It can reach speeds over 320 km/h (200 mph) during its hunting dive.
Q43. Which animal has strongest bite force?
A
Saltwater croc
B
Hippopotamus
C
Lion
D
Tiger
Q43. Which animal has strongest bite force?
Ans: Saltwater croc
Explanation:
Hint: A powerful reptile. Why: It has been measured with a crushing force of 3,700 PSI.
Q44. How many bones in an adult human?
A
206
B
205
C
208
D
210
Q44. How many bones in an adult human?
Ans: 206
Explanation:
Hint: Less than a baby has. Why: Babies are born with around 300 bones, which fuse as they grow.
Q45. Smallest bone in the human body?
A
Stapes
B
Malleus
C
Incus
D
Patella
Q45. Smallest bone in the human body?
Ans: Stapes
Explanation:
Hint: Located in your ear. Why: Also called the stirrup, it is only about 3mm long.
Q46. Body parts that never stop growing?
A
Nose and ear
B
Ears and leg
C
Fingers/toes
D
Toes/nose
Q46. Body parts that never stop growing?
Ans: Nose and ear
Explanation:
Hint: Changes as you get older. Why: Unlike bone, cartilage continues to change and stretch due to gravity.
Q47. How many teeth does an adult have?
A
32
B
30
C
28
D
34
Q47. How many teeth does an adult have?
Ans: 32
Explanation:
Hint: Includes wisdom teeth. Why: A full set includes 8 incisors, 4 canines, 8 premolars, and 12 molars.
Q48. Normal body temperature in Celsius?
A
37°C
B
36°C
C
38°C
D
39°C
Q48. Normal body temperature in Celsius?
Ans: 37°C
Explanation:
Hint: The healthy average. Why: This is the standard internal temperature for human body function.
Q49. How many chambers in a human heart?
A
4
B
3
C
2
D
5
Q49. How many chambers in a human heart?
Ans: 4
Explanation:
Hint: Two atria and two ventricles. Why: These chambers work together to separate and pump blood.
Q50. Largest artery in the human body?
A
Aorta
B
Pulmonary
C
Coronary
D
Carotid
Q50. Largest artery in the human body?
Ans: Aorta
Explanation:
Hint: Starts at the heart. Why: It carries oxygen-rich blood from the left ventricle to the whole body.
Q51. Vitamin produced by sunlight?
A
Vitamin D
B
Vitamin C
C
Vitamin B12
D
Vitamin A
Q51. Vitamin produced by sunlight?
Ans: Vitamin D
Explanation:
Hint: The "sunshine" vitamin. Why: The skin creates this vitamin when exposed to UV radiation.
Q52. Percentage of water in human body?
A
0.6
B
0.7
C
0.8
D
0.5
Q52. Percentage of water in human body?
Ans: 0.6
Explanation:
Hint: Most of your weight. Why: An average adult's weight is approximately 60% fluid.
Q53. How many liters of blood in an adult?
A
5
B
6
C
7
D
8
Q53. How many liters of blood in an adult?
Ans: 5
Explanation:
Hint: About 7-8% of body weight. Why: An average adult human has roughly 4.5 to 5.5 liters of blood circulating. (p. 1)
Q54. Closest planet to the sun?
A
Mercury
B
Venus
C
Earth
D
Mars
Q54. Closest planet to the sun?
Ans: Mercury
Explanation:
Hint: Smallest and fastest orbit. Why: It orbits at an average distance of only 58 million km from the Sun. (p. 1)
Q55. Which planet has the most moons?
A
Jupiter
B
Saturn
C
Uranus
D
Neptune
Q55. Which planet has the most moons?
Ans: Saturn
Explanation:
Hint: Famous for its rings. Why: Saturn currently leads with 146 confirmed moons, surpassing Jupiter. (p. 1)
Q56. Hottest planet in our solar system?
A
Venus
B
Mercury
C
Mars
D
Jupiter
Q56. Hottest planet in our solar system?
Ans: Venus
Explanation:
Hint: Has a runaway greenhouse effect. Why: Its thick atmosphere traps heat, reaching temperatures of 465°C. (p. 1)
Q57. Which planet is the ringed planet?
A
Saturn
B
Jupiter
C
Uranus
D
Neptune
Q57. Which planet is the ringed planet?
Ans: Saturn
Explanation:
Hint: Most visible rings. Why: While others have rings, Saturn's are the most extensive and bright. (p. 1)
Q58. Largest planet in our solar system?
A
Jupiter
B
Saturn
C
Uranus
D
Neptune
Q58. Largest planet in our solar system?
Ans: Jupiter
Explanation:
Hint: Named after the king of gods. Why: It is more than twice as massive as all other planets combined. (p. 1)
Q59. Takes longest to orbit the sun?
A
Neptune
B
Uranus
C
Jupiter
D
Saturn
Q59. Takes longest to orbit the sun?
Ans: Neptune
Explanation:
Hint: The farthest planet. Why: Being the most distant, one "year" on Neptune takes about 165 Earth years. (p. 1)
Q60. Name of our galaxy?
A
Milky Way
B
Andromeda
C
Triangulum
D
Sombrero
Q60. Name of our galaxy?
Ans: Milky Way
Explanation:
Hint: Looks like spilled milk. Why: It is the barred spiral galaxy that contains our entire solar system. (p. 1)
Q61. How many stars in our solar system?
A
1
B
2
C
3
D
4
Q61. How many stars in our solar system?
Ans: 1
Explanation:
Hint: It's the Sun. Why: By definition, a solar system is the gravity-bound system of a single star. (p. 1)
Q62. Largest volcano in solar system?
A
Olympus Mons
B
Mauna Loa
C
Mt. Everest
D
Mt. Fuji
Q62. Largest volcano in solar system?
Ans: Olympus Mons
Explanation:
Hint: Found on Mars. Why: It is three times the height of Mt. Everest and the size of Arizona. (p. 1)
Q63. Which planet rotates on its side?
A
Uranus
B
Venus
C
Pluto
D
Neptune
Q63. Which planet rotates on its side?
Ans: Uranus
Explanation:
Hint: An "Ice Giant." Why: Its axis of rotation is tilted at 98 degrees, likely due to a massive collision. (p. 1)
Q64. Chemical symbol for silver?
A
Ag
B
Au
C
Pt
D
Cu
Q64. Chemical symbol for silver?
Ans: Ag
Explanation:
Hint: From the Latin 'Argentum'. Why: 'Ag' is used internationally to represent silver on the periodic table. (p. 1)
Q65. Which gas is most abundant in air?
A
Nitrogen
B
Oxygen
C
Argon
D
CO2
Q65. Which gas is most abundant in air?
Ans: Nitrogen
Explanation:
Hint: 78% of the air. Why: It is the primary gas in Earth's atmosphere, followed by Oxygen (21%). (p. 1)
Q66. Chemical symbol for iron?
A
Fe
B
Ir
C
Ni
D
Co
Q66. Chemical symbol for iron?
Ans: Fe
Explanation:
Hint: From the Latin 'Ferrum'. Why: Used to represent one of the most common elements on Earth. (p. 1)
Q67. What is the pH of pure water?
A
7
B
6
C
8
D
5
Q67. What is the pH of pure water?
Ans: 7
Explanation:
Hint: Exactly in the middle. Why: A pH of 7 is considered perfectly neutral (neither acid nor base). (p. 1)
Q68. Which gas is "laughing gas"?
A
Nitrous oxide
B
CO2
C
Methane
D
Oxygen
Q68. Which gas is "laughing gas"?
Ans: Nitrous oxide
Explanation:
Hint: Used by dentists. Why: It has an intoxicating effect that can cause laughter and pain relief. (p. 1)
Q69. Hardest metal on Earth?
A
Tungsten
B
Steel
C
Titanium
D
Chromium
Q69. Hardest metal on Earth?
Ans: Tungsten
Explanation:
Hint: Used in lightbulb filaments. Why: It has the highest melting point and highest tensile strength. (p. 1)
Q70. Who invented the telephone?
A
A.G. Bell
B
Edison
C
Tesla
D
Einstein
Q70. Who invented the telephone?
Ans: A.G. Bell
Explanation:
Hint: "Mr. Watson, come here!" Why: Alexander Graham Bell received the first US patent for the device in 1876. (p. 1)
Q71. Who developed relativity theory?
A
Einstein
B
Newton
C
Galileo
D
Tesla
Q71. Who developed relativity theory?
Ans: Albert Einstein
Explanation:
Hint: E=mc². Why: His theories changed our understanding of space, time, and gravity. (p. 1)
Q72. Who painted the Starry Night?
A
Van Gogh
B
Picasso
C
Monet
D
Da Vinci
Q72. Who painted the Starry Night?
Ans: Van Gogh
Explanation:
Hint: He painted it in an asylum. Why: It is one of the most recognized works in Western art history. (p. 1)
Q73. Who wrote "The Jungle Book"?
A
Rudyard Kipling
B
Lewis Carroll
C
Enid Blyton
D
Mark Twain
Q73. Who wrote "The Jungle Book"?
Ans: Rudyard Kipling
Explanation:
Hint: Mowgli's creator. Why: This 1894 collection of stories was inspired by Kipling's time living in India.
Q74. Who invented the printing press?
A
Johannes Gutenberg
B
Isaac Newton
C
Leonardo da Vinci
D
Galileo Galilei
Q74. Who invented the printing press?
Ans: Johannes Gutenberg
Explanation:
Hint: Started the "Information Revolution." Why: His 15th-century invention allowed for the mass production of books.
Q75. Who is the 'Father of Modern Physics'?
A
Albert Einstein
B
Isaac Newton
C
Galileo Galilei
D
Niels Bohr
Q75. Who is the 'Father of Modern Physics'?
Ans: Albert Einstein
Explanation:
Hint: He discovered the photoelectric effect. Why: His revolutionary work on relativity and quantum mechanics reshaped the field.
Q76. Which is the largest island in the world?
A
Greenland
B
Australia
C
Antarctica
D
Madagascar
Q76. Which is the largest island in the world?
Ans: Greenland
Explanation:
Hint: Located in the North Atlantic. Why: While Australia is larger, it is classified as a continent, making Greenland the largest island.
Q77. What is the tallest animal?
A
Eagle
B
Giraffe
C
Rabbit
D
Donkey
Q77. What is the tallest animal?
Ans: Giraffe
Explanation:
Hint: Has a very long neck. Why: Adult males can reach heights of up to 5.8 meters (19 feet).
Q78. What is the sound of an elephant?
A
Roaring
B
Barks
C
Neigh
D
Squeaks
Q78. What is the sound of an elephant?
Ans: Trumpet (Squeaks)
Explanation:
Hint: High-pitched and loud. Why: While the document lists "squeaks," elephants are most famous for their loud trumpeting sound.
Q79. Which planet is known as the red planet?
A
Earth
B
Venus
C
Mars
D
Jupiter
Q79. Which planet is known as the red planet?
Ans: Mars
Explanation:
Hint: Named after the god of war. Why: Its surface is covered in iron oxide (rust), which gives the planet its iconic reddish appearance.
Q80. Which of these is a producer in a food chain?
A
Lion
B
Rabbit
C
Grass
D
Snake
Q80. Which of these is a producer in a food chain?
Ans: Grass
Explanation:
Hint: It makes its own food. Why: As a plant, grass uses photosynthesis to convert sunlight into energy, forming the base of most food chains.
Q81. Which of the following is a mammal?
A
Frog
B
Snake
C
Dolphin
D
Eagle
Q81. Which of the following is a mammal?
Ans: Dolphin
Explanation:
Hint: It breathes air, not water. Why: Dolphins are warm-blooded, have hair (at birth), and nurse their young with milk, unlike fish or reptiles.
Q82. Which is the largest land animal of the world?
A
Blue whale
B
Rhinoceros
C
Elephant
D
Giraffe
Q82. Which is the largest land animal of the world?
Ans: Elephant
Explanation:
Hint: It has a long trunk. Why: The African Bush Elephant is the heaviest and largest terrestrial animal, weighing up to 6 tons.
Q83. Which of these is a healthy food group?
A
Candies
B
Fruits/Veg
C
Soft drinks
D
Chips
Q83. Which of these is a healthy food group?
Ans: Fruits/Veg
Explanation:
Hint: Natural and colorful. Why: This group provides essential fiber, vitamins, and minerals that help prevent diseases and maintain body health.
Q84. Which of these is a source of renewable energy?
A
Coal
B
Charcoal
C
Natural gas
D
Solar power
Q84. Which of these is a source of renewable energy?
Ans: Solar power
Explanation:
Hint: It comes from the sky. Why: Unlike fossil fuels, solar energy is replenished naturally by the sun and will not run out for billions of years.
Q85. What is the largest organ in the human body?
A
Brain
B
Heart
C
Skin
D
Liver
Q85. What is the largest organ in the human body?
Ans: Skin
Explanation:
Hint: It covers your whole body. Why: The skin is an organ that protects internal structures, regulates temperature, and provides a sense of touch.
Q86. Which sense organ is used for hearing?
A
Eye
B
Nose
C
Ear
D
Tongue
Q86. Which sense organ is used for hearing?
Ans: Ear
Explanation:
Hint: Found on the sides of your head. Why: The ear captures sound vibrations and converts them into electrical signals for the brain to process.
Q87. Animals that eat only plants are called?
A
Carnivores
B
Omnivores
C
Herbivores
D
Decomposers
Q87. Animals that eat only plants are called?
Ans: Herbivores
Explanation:
Hint: Think of a cow or rabbit. Why: Herbivores have specialized digestive systems (like flat teeth) designed to break down tough plant cellulose.
Q88. Which type of teeth are used for tearing food?
A
Incisors
B
Canines
C
Molars
D
Premolars
Q88. Which type of teeth are used for tearing food?
Ans: Canines
Explanation:
Hint: Pointy like a vampire's. Why: Canines are sharp and pointed, specifically evolved for gripping and ripping meat or tough food.
Q89. Main source of light and heat for Earth?
A
Moon
B
Stars
C
Sun
D
Fire
Q89. Main source of light and heat for Earth?
Ans: Sun
Explanation:
Hint: The biggest star in our sky. Why: The Sun provides the solar radiation necessary for photosynthesis and maintains Earth's habitable temperature.
Q90. Which one of these is a vertebrate animal?
A
Jellyfish
B
Earthworm
C
Fish
D
Sponge
Q90. Which one of these is a vertebrate animal?
Ans: Fish
Explanation:
Hint: It has a backbone. Why: Vertebrates are animals with a spinal column. Fish, birds, and mammals belong to this group.
Q91. Which gas do humans breathe out?
A
Oxygen
B
Nitrogen
C
Carbon dioxide
D
Helium
Q91. Which gas do humans breathe out?
Ans: Carbon dioxide
Explanation:
Hint: Plants "breathe" this in. Why: It is the chemical waste product produced when our cells burn oxygen for energy.
Q92. Which of these is a push or a pull?
A
Energy
B
Work
C
Force
D
Power
Q92. Which of these is a push or a pull?
Ans: Force
Explanation:
Hint: Needed to move a chair. Why: In physics, a force is any interaction that, when unopposed, will change the motion of an object.
Q93. What tool is used to measure temperature?
A
Ruler
B
Scale
C
Thermometer
D
Stopwatch
Q93. What tool is used to measure temperature?
Ans: Thermometer
Explanation:
Hint: Used when you are sick. Why: It uses a sensor or a liquid (like alcohol) that expands or contracts to show thermal levels.
Q94. What animal lays eggs?
A
Cow
B
Dog
C
Chicken
D
Cat
Q94. What animal lays eggs?
Ans: Chicken
Explanation:
Hint: Provides breakfast. Why: As birds, chickens reproduce by laying hard-shelled eggs containing a yolk and embryo.
Q95. Which sense organ is responsible for taste?
A
Nose
B
Skin
C
Tongue
D
Eye
Q95. Which sense organ is responsible for taste?
Ans: Tongue
Explanation:
Hint: Inside your mouth. Why: The tongue contains thousands of tiny taste buds that detect sweet, sour, salty, and bitter flavors.
Q96. Which is the tallest mountain in the world?
A
Annapurna
B
Gurisangar
C
Juggle
D
Mt. Everest
Q96. Which is the tallest mountain in the world?
Ans: Mt. Everest
Explanation:
Hint: Located in the Himalayas. Why: Its peak is the highest point above sea level, reaching 8,848 meters (29,029 ft).
Q97. Which is the largest plateau in the world?
A
Columbia
B
Deccan
C
Tibetan
D
Deccan
Q97. Which is the largest plateau in the world?
Ans: Tibetan
Explanation:
Hint: "Roof of the World." Why: It is the highest and largest plateau on Earth, spanning 2.5 million square kilometers.
Q98. Which planet has the giant red spot?
A
Mercury
B
Venus
C
Uranus
D
Jupiter
Q98. Which planet has the giant red spot?
Ans: Jupiter
Explanation:
Hint: The largest planet. Why: The spot is a massive, spinning storm in Jupiter's atmosphere that is larger than Earth itself.
Q99. Which planet is the smallest?
A
Jupiter
B
Saturn
C
Mercury
D
Venus
Q99. Which planet is the smallest?
Ans: Mercury
Explanation:
Hint: Closest to the sun. Why: Mercury is only slightly larger than Earth's moon and is the smallest of the 8 major planets.
Q100. What is the largest ocean on Earth?
A
Atlantic
B
Pacific
C
Arctic
D
Southern
Q100. What is the largest ocean on Earth?
Ans: Pacific
Explanation:
Hint: Touches Asia and America. Why: It covers about 30% of the Earth's surface, making it larger than all the landmasses combined.
Q101. Land of the Rising Sun?
A
Germany
B
Japan
C
Nepal
D
Norway
Q101. Land of the Rising Sun?
Ans: Japan
Explanation:
Hint: Island nation in East Asia. Why: "Nippon" (the Japanese name for Japan) literally means "the sun's origin."
Q102. Which animal is the 'Ship of the Desert'?
A
Cow
B
Buffalo
C
Camel
D
Horse
Q102. Which animal is the 'Ship of the Desert'?
Ans: Camel
Explanation:
Hint: Has humps on its back. Why: Camels can travel long distances in harsh deserts with very little water while carrying heavy loads.
Q103. Rainbow consists of how many colours?
A
7
B
20
C
8
D
5
Q103. Rainbow consists of how many colours?
Ans: 7
Explanation:
Hint: Remember ROYGBIV. Why: Sunlight is refracted into Red, Orange, Yellow, Green, Blue, Indigo, and Violet.
Q104. Which of the following is a dwarf planet?
A
Mercury
B
Venus
C
Jupiter
D
Haumea
Q104. Which of the following is a dwarf planet?
Ans: Haumea
Explanation:
Hint: Not one of the main 8. Why: Haumea is an oval-shaped dwarf planet located in the Kuiper Belt beyond Neptune.
Q105. Bird that lays >100 eggs in one nest?
A
Eagle
B
Ostrich
C
Emu
D
Woodpecker
Q105. Bird that lays >100 eggs in one nest?
Ans: Emu
Explanation:
Hint: Large flightless bird. Why: In some communal nesting habits, an Emu nest can hold a very high volume of large green eggs.
Q106. Which animal baby is called a puppy?
A
Cat
B
Elephant
C
Dog
D
Cow
Q106. Which animal baby is called a puppy?
Ans: Dog
Explanation:
Hint: Man's best friend. Why: A puppy is the standard term for a young dog before it reaches adulthood.
Q107. Symbol of medicine animal?
A
Titano boa
B
King cobra
C
Taipan
D
Serpent
Q107. Symbol of medicine animal?
Ans: Serpent
Explanation:
Hint: Wrapped around a staff. Why: The "Rod of Asclepius," featuring a snake (serpent) coiled around a rod, is the ancient symbol of healing.
Q108. The tallest animal is?
A
Eagle
B
Giraffe
C
Rabbit
D
Donkey
Q108. The tallest animal is?
Ans: Giraffe
Explanation:
Hint: Has a very long neck. Why: Their height allows them to reach leaves on tall acacia trees that other animals cannot reach.
Q109. Bat is a mammal but it can?
A
Swim
B
Fly
C
Sink
D
Walk
Q109. Bat is a mammal but it can?
Ans: Fly
Explanation:
Hint: It has wings. Why: Bats are the only mammals capable of true, powered flight (rather than just gliding).
Q110. What is the sound of an elephant?
A
Roaring
B
Barks
C
Neigh
D
Squeaks
Q110. What is the sound of an elephant?
Ans: Squeaks
Explanation:
Hint: High pitched sound. Why: While elephants "trumpet," the document notes they can make high-pitched squeaks or chirps to communicate.
Q111. Hands on an octopus?
A
Nine
B
Eight
C
Five
D
Four
Q111. Hands on an octopus?
Ans: Eight
Explanation:
Hint: Think of the name "Octo-". Why: Octopuses have eight limbs, which are technically tentacles lined with suckers.
Q112. Which bird can fly backward?
A
Ostrich
B
Rooster
C
Hummingbird
D
Eagle
Q112. Which bird can fly backward?
Ans: Hummingbird
Explanation:
Hint: Tiny and very fast. Why: Their unique wing joints allow them to rotate in a circle, enabling hover and reverse flight.
Q113. Which is the largest living bird?
A
Eagle
B
Ostrich
C
Rooster
D
Hummingbird
Q113. Which is the largest living bird?
Ans: Ostrich
Explanation:
Hint: It cannot fly but runs fast. Why: They are the heaviest birds and lay the largest eggs in the world.
Q114. Largest desert in the world?
A
Antarctica
B
Sahara
C
Gobi
D
Thar
Q114. Largest desert in the world?
Ans: Sahara
Explanation:
Hint: Located in North Africa. Why: While Antarctica is a "cold desert," the Sahara is the largest "hot desert" on Earth.
Q115. Longest river in the world?
A
Nile
B
Amazon
C
Yangtze
D
Mississippi
Q115. Longest river in the world?
Ans: Nile
Explanation:
Hint: Found in Egypt. Why: It flows for about 6,650 kilometers (4,130 miles) through 11 different countries.
Q116. Smallest country in the world?
A
Vatican City
B
Monaco
C
San Marino
D
Malta
Q116. Smallest country in the world?
Ans: Vatican City
Explanation:
Hint: Inside Rome, Italy. Why: It is an independent city-state with a total area of only 0.44 square kilometers.
Q117. Largest country by area?
A
Russia
B
Canada
C
China
D
USA
Q117. Largest country by area?
Ans: Russia
Explanation:
Hint: Spans Europe and Asia. Why: It covers more than one-eighth of the Earth's inhabited land area.
Q118. Most populous country?
A
China
B
India
C
USA
D
Indonesia
Q118. Most populous country?
Ans: China
Explanation:
Hint: Document says China. Why: Historically the most populous, though India has recently challenged this rank in 2023/24 data.
Q119. Which ocean is the deepest?
A
Pacific
B
Atlantic
C
Indian
D
Arctic
Q119. Which ocean is the deepest?
Ans: Pacific
Explanation:
Hint: Same as the largest ocean. Why: It contains the Challenger Deep in the Mariana Trench, about 11,000 meters down.
Q120. Highest waterfall in the world?
A
Angel Falls
B
Niagara
C
Victoria
D
Iguazu
Q120. Highest waterfall in the world?
Ans: Angel Falls
Explanation:
Hint: Located in Venezuela. Why: Water falls from a height of 979 meters (3,212 ft) off a "tepui" mountain.
Q121. Largest island in the world?
A
Greenland
B
Australia
C
Antarctica
D
Madagascar
Q121. Largest island in the world?
Ans: Greenland
Explanation:
Hint: Covered in ice. Why: Australia is considered a continent, so Greenland takes the title for the largest island.
Q122. Tallest building in the world?
A
Burj Khalifa
B
Shanghai
C
Abraj Al Bait
D
One World
Q122. Tallest building in the world?
Ans: Burj Khalifa
Explanation:
Hint: Located in Dubai. Why: It stands at 828 meters (2,717 ft) and has over 160 stories.
Q123. Largest mammal in the world?
A
Blue whale
B
Elephant
C
African elephant
D
Whale shark
Q123. Largest mammal in the world?
Ans: Blue whale
Explanation:
Hint: Lives in the sea. Why: It is the largest animal ever known to have lived, even bigger than dinosaurs.
Q124. Fastest fish in the ocean?
A
Sailfish
B
Marlin
C
Tuna
D
Swordfish
Q124. Fastest fish in the ocean?
Ans: Sailfish
Explanation:
Hint: Has a sail-like fin. Why: They have been clocked at speeds up to 110 kilometers per hour (68 mph).
Q125. Which bird can run the fastest?
A
Ostrich
B
Emu
C
Cassowary
D
Rhea
Q125. Which bird can run the fastest?
Ans: Ostrich
Explanation:
Hint: Large and flightless. Why: They can maintain speeds of 70 km/h (43 mph), the fastest of any bird on land.
Q126. Largest snake in the world?
A
Green anaconda
B
Python
C
King cobra
D
Boa
Q126. Largest snake in the world?
Ans: Green anaconda
Explanation:
Hint: Lives in South America. Why: While some pythons are longer, the anaconda is the heaviest snake in the world.
Q127. Longest lifespan animal?
A
Bowhead whale
B
Tortoise
C
Greenland shark
D
Elephant
Q127. Longest lifespan animal?
Ans: Bowhead whale
Explanation:
Hint: Lives in the Arctic. Why: These whales can live over 200 years in the cold northern waters.
Q128. Heaviest land animal?
A
Elephant
B
Hippo
C
White rhino
D
Giraffe
Q128. Heaviest land animal?
Ans: Elephant
Explanation:
Hint: Document says Elephant. Why: Specifically, the African Bush Elephant is the heaviest terrestrial animal.
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