This quiz works best with JavaScript enabled. Home > Cbse > Class 3 > Evs > Web Of Life > Class 3 Evs Chapter 24 Web Of Life – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 3 Evs Chapter 24 Web Of Life Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the black stuff that is left behind after leaves decompose? A) Fungus. B) Soil. C) Mushrooms. D) None of the above. Show Answer Correct Answer: B) Soil. 2. Choose the thing that does not need energy from the sun in order to grow. A) Car. B) A boy. C) Plants. D) None of the above. Show Answer Correct Answer: A) Car. 3. Grass, zebras, lions A) Carnivores. B) Decomposersers. C) Producers. D) None of the above. Show Answer Correct Answer: D) None of the above. 4. An organism that breaks down dead plant and animal material into simple chemicals is called ..... A) Omnivore. B) Dekposer. C) Herbivore. D) None of the above. Show Answer Correct Answer: B) Dekposer. 5. Animals are called ..... because they consume plant food. A) Producers. B) Consumers. C) Decomposersers. D) None of the above. Show Answer Correct Answer: B) Consumers. 6. A food chain always starts with a ..... A) Insect. B) Plants. C) Decomposersers. D) Animal. Show Answer Correct Answer: B) Plants. 7. Which of these is an example of a non-living thing that supports life? A) Birds. B) Rocks. C) Water. D) Trees. Show Answer Correct Answer: C) Water. 8. Through studying the soil, scientists have determined that most dinosaurs went extinct about A) 65 thousand years ago. B) 65 million years ago. C) 650 million years ago. D) None of the above. Show Answer Correct Answer: B) 65 million years ago. 9. What is a predator? A) Animals that are eaten by other animals. B) Animals that hunt and eat other animals. C) Animals that protect other animals from being eaten. D) None of the above. Show Answer Correct Answer: B) Animals that hunt and eat other animals. 10. Racoons, bears, crows A) Carnivores. B) Herbivores. C) Omnivores. D) Decomposers. Show Answer Correct Answer: C) Omnivores. 11. Animals that eat plants and meat are called A) Carnivores. B) Herbivores. C) Omnivores. D) None of the above. Show Answer Correct Answer: C) Omnivores. 12. Plants are the ..... that make their food. A) Decomposersers. B) Consumers. C) Producers. D) None of the above. Show Answer Correct Answer: C) Producers. 13. A furry growth of minute fungal hyphae occurring typically in moist warm conditions, especially on food or other organic matter. A) Fungi. B) Decomposersers. C) Spores. D) Mold. E) Variable. Show Answer Correct Answer: D) Mold. 14. What would happen if we didn't have mushrooms? A) The plants would be much healthier. B) We wouldn't have any soil. C) Trees would grow much taller than they do now. D) None of the above. Show Answer Correct Answer: B) We wouldn't have any soil. 15. When animals die, they decompose and become natural fertilizer for plants. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. The energy in all ecosystems comes from the ..... A) Consumer. B) Oxygen level. C) Sun. D) Producer. Show Answer Correct Answer: C) Sun. 17. Leaves have little microscopic "mouths" under the leaves that are called A) Stomata. B) Chlorophyll. C) Cells. D) None of the above. Show Answer Correct Answer: A) Stomata. 18. *Living things are alive. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. All living things need ..... to live. A) Air. B) Water. C) Sunlight. D) All of the above. Show Answer Correct Answer: D) All of the above. 20. Complete the following food chainPlant $\rightarrow$ ..... $\rightarrow$ Frog A) Insect. B) Seed. C) Ice. D) Flower. Show Answer Correct Answer: A) Insect. 21. Find the odd one out:River, lake, fish, sea. A) Lake. B) Fish. C) Sea. D) River. Show Answer Correct Answer: B) Fish. 22. Mold is an example of a A) Gas. B) Producer. C) Dekposer. D) None of the above. Show Answer Correct Answer: C) Dekposer. 23. Complete the following food chain-( Plant, ..... , Frog.) A) Snake. B) Lizard. C) Grasshopper. D) None of the above. Show Answer Correct Answer: C) Grasshopper. 24. Identify the decomposer. A) Bacteria. B) Plants. C) Crow. D) Lion. Show Answer Correct Answer: A) Bacteria. 25. Why isn't all the energy passed on from one level of the food chain to the next? A) Because the energy is too busy taking selfies. B) The energy is on a vacation. C) The energy is used to power alien spaceships. D) Some of the energy is lost as heat. Show Answer Correct Answer: D) Some of the energy is lost as heat. 26. What would you find at the very bottom of a food chain?Nikil and Shelby are working on a school project about how energy moves in nature. A) Alien Space Cows. B) Invisible Pink Unicorns. C) Grass. D) Chocolate-Eating Rabbits. Show Answer Correct Answer: C) Grass. 27. What's the main source of energy for everything living on Earth, as Cody and Shelby explained in their science project? A) Water. B) Oxygen. C) Unlimited Wi-Fi. D) Sunlight. E) Carbon dioxide. Show Answer Correct Answer: D) Sunlight. 28. What breaks down the leaves that fall on the forest floor? A) Water. B) Bacteria. C) White colored strings or threads. D) None of the above. Show Answer Correct Answer: C) White colored strings or threads. 29. Bears eat berries and salmon. Bears are ..... A) Producers. B) Carnivores. C) Omnivores. D) None of the above. Show Answer Correct Answer: C) Omnivores. 30. Which of these is a living thing? A) Rock. B) Bird. C) Air. D) Water. Show Answer Correct Answer: B) Bird. 31. Things that are alive are called nonliving things. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 32. Which of the following is NOT part of how carbon moves around in nature? A) Clouds making sweaters from the air. B) Plants taking in carbon dioxide. C) Animals breathing out carbon dioxide. D) Cars using gasoline. E) Plants eating animals. Show Answer Correct Answer: E) Plants eating animals. 33. Where is the largest tree in the world growing? A) Maine. B) Texas. C) California. D) None of the above. Show Answer Correct Answer: C) California. 34. Why are hawks living in New York City? A) There is plenty of prey to eat. B) The forests are too polluted. C) There is not enough room in the forest. D) None of the above. Show Answer Correct Answer: A) There is plenty of prey to eat. 35. How do Sean and Zorian help in the carbon cycle? A) By turning into trees at night. B) By breathing in oxygen and breathing out carbon dioxide. C) By doing secret experiments with plants. D) By talking to plants with their minds. E) Both B and C. Show Answer Correct Answer: B) By breathing in oxygen and breathing out carbon dioxide. 36. During a science project, Shelby and CJ found out that animals breathe out a gas that plants use to make their food. What is this gas? A) Glitter. B) Carbon dioxide. C) Invisible Ink. D) Unicorn Breath. Show Answer Correct Answer: B) Carbon dioxide. 37. How do the white threads on leaves cause a leaf to break down or decompose? A) There is a liquid that is released that starts to break apart the leaf. B) There are tiny insects in the white threads that begin to eat parts of the leaves. C) The leaf is covered and can no longer breathe so it dies. D) None of the above. Show Answer Correct Answer: A) There is a liquid that is released that starts to break apart the leaf. 38. Organisms that make their own food are called ..... A) Producers. B) Herbivores. C) Omnivores. D) None of the above. Show Answer Correct Answer: A) Producers. 39. An ecosystem includes all the producers, consumers, and decomposers in an environment. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 40. An organism that needs to eat other organisms is called ..... A) Dekposer. B) Consumer. C) Producer. D) None of the above. Show Answer Correct Answer: B) Consumer. 41. Tick the correct source of water A) Fruit. B) River. C) Sand. D) Oil. Show Answer Correct Answer: B) River. 42. Why do living things need air? A) To look beautiful. B) To grow. C) To breathe. D) To change color. Show Answer Correct Answer: C) To breathe. 43. Not all plants use flowers and seeds to reproduce. Some plants, like ferns, use these to create new plants. A) Decomposersers. B) Fungi. C) Mold. D) Variable. E) Spores. Show Answer Correct Answer: E) Spores. 44. Which one is not a natural resource? A) Play dough. B) Water. C) Air. D) Plants. Show Answer Correct Answer: A) Play dough. 45. Why do you have to clean a fish tank but not a pond? A) Fish tanks are dirtier. B) Fish tanks don't have decomposers to break down waste. C) Fish make oxygen in the water that can be seen in a fish tank. D) None of the above. Show Answer Correct Answer: B) Fish tanks don't have decomposers to break down waste. 46. Cougars, sharks, t-rex A) Producers. B) Omnivores. C) Herbivores. D) Carnivores. Show Answer Correct Answer: D) Carnivores. 47. Who comes first in food chain? A) Plants. B) Human. C) Deer. D) None of the above. Show Answer Correct Answer: A) Plants. 48. Animals are examples of A) Producers. B) Consumers. C) Decomposersers. D) None of the above. Show Answer Correct Answer: B) Consumers. 49. Which of these is not related to driving a car properly? A) Knowing the rules of the road. B) Having a valid driving licence. C) Knowing how to drive. D) Having a lot of money. Show Answer Correct Answer: D) Having a lot of money. 50. When you follow any food chain, you will find that ..... are always included. A) Insects. B) Animals. C) Plants. D) None of the above. Show Answer Correct Answer: C) Plants. 51. What do hawks eat in New York City? A) Plants. B) Seeds. C) Small birds. D) None of the above. Show Answer Correct Answer: C) Small birds. 52. Phytoplankton, algae, trees A) Decomposersers. B) Herbivores. C) Carnivores. D) Producers. Show Answer Correct Answer: D) Producers. 53. ..... lose leaves and die. A) Producers. B) Consumers. C) Decomposersers. D) None of the above. Show Answer Correct Answer: A) Producers. 54. How does the web of life help us understand nature? A) It shows how plants and animals compete. B) It explains how all things are connected. C) It shows that only animals matter. D) It teaches us how to make food. Show Answer Correct Answer: B) It explains how all things are connected. 55. What process mainly makes the oxygen we breathe on Earth?Hint:Cody and Sean talked about this in class. A) Magical Oxygen Rain. B) Alien Oxygen Factories. C) Photosynthesis. D) Worldwide Oxygen Dance Parties. Show Answer Correct Answer: C) Photosynthesis. 56. The item not related to bricks is- A) Tree. B) Water. C) Kiln. D) Clay. Show Answer Correct Answer: A) Tree. 57. Where do the leaves on the forest floor go after they fall? A) They are raked up by forest rangers. B) They decompose (rot). C) They are buried under the soil and covered up by dirt. D) None of the above. Show Answer Correct Answer: B) They decompose (rot). 58. Why is the carbon cycle important for keeping Earth's temperature stable, as AJ and Shelby found out? A) It turns us all into carbon-based superheroes. B) It helps control Earth's temperature. C) It powers invisible bikes for forest elves. D) It's the secret ingredient in grandma's famous cookies. Show Answer Correct Answer: B) It helps control Earth's temperature. 59. What happens during cellular respiration, as explained by Zorian and Shelby for a science project? A) Carbon dioxide is turned into oxygen. B) Animals turn oxygen into carbon dioxide. C) Cats secretly control physics. D) Plants make oxygen. E) Sunlight is turned into energy. Show Answer Correct Answer: B) Animals turn oxygen into carbon dioxide. 60. After many animals became extinct, the animals that DID survive were mostly A) Carnivores. B) Herbivores. C) Omnivores. D) None of the above. Show Answer Correct Answer: C) Omnivores. Next →Related QuizzesEvs QuizzesClass 3 QuizzesClass 3 Evs Chapter 24 Web Of Life Quiz 2Class 3 Evs Chapter 24 Web Of Life Quiz 3 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books