Class 4 Science Chapter 2 Test 3 Updated: 11 Jun 2022 241 Welcome to your Class 4 Science Chapter 2 Test 3 1. Plants produce ______ during photosynthesis. Oxygen Carbon dioxide Hydrogen All of these 2. ________ are also called rainforests of the ocean. Coral Algae Lotus Bacteria 3. In any food chain the ________ living thing is herbivores. First Second Third Fourth 4. The series of eating and being eaten in an ecosystem is called __________. Balance diet Food chain Carnivores Herbivores 5. Corals usually live in form of colony which is called ________. Coral land Coral colony Coral ocean Coral reef 6. In any food chain the third living thing is a ___________. Herbivores Carnivores Omnivores None of these 7. The animals which eat other animals are called _________ Herbivores Carnivores Omnivores None of these 8. Animals produce_______ which is used by plants to make food. Oxygen Carbon dioxide Hydrogen All of these 9. The sun is the main source of energy in a/an _______. Electric system Water Ecosystem None of these 10. Corals are a part of beautiful ecosystem under ________ Ground Desert Rock Sea 11. In the following food chain Sunlight→Grass→Rabbit→Lion, the relation of loin to rabbit is an example of: Predation Parasitism Mutualism Production 12. Which of the following shows the correct food chain in an environment? Sun→Consumers→Producers→Decomposers Sun→Producers→Decomposers→Consumers Sun→Producers→Consumers→Decomposers 13. The animals which eat both plants and animals are called ______ Herbivores Carnivores Omnivores None of these 14. 15. In any food chain the first living thing is a ________. Producers Consumers Decomposer All of these Time's up
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