1. What is the environment? 2. Define the terms biotic and abiotic. 3. What is an ecosystem? 4. When is the world environment day celebrated? 5. What is the barter system? 6. What do you mean by natural environment? 7. Which are the major components of the environment? 8. Give four examples of the human-made environment. 9. What is lithosphere? 10. Which are the two major components of the biotic environment? 11. What is biosphere? 12. The aquarium is not a natural ecosystem. True or false? 13. Man modifies his environment. Give reasons. 14. Plants and animals depend on each other. Justify with reason. 15. Define the atmosphere. What is the significance of the atmosphere? 16. Define hydrosphere. What does it comprise of? 17. Describe the impact of human activity on the natural environment. 18. Give a reason why Earth is the home of human beings and other organisms. 19. Do plants take nitrogen directly from the air? 20. Name the gases that are found in lesser quantities in the atmosphere.
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answer 1: cenvirmeny of plants
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Answer:1) Environment denotes the condition around an organism or a community of organism. Such a condition includes all necessary elements for survival.
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