1. Define the following terms:
a. Environment
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b. Ecosystem
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c. Biosphere
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d. Barter system
______________________________________________________________________________________.
2. Answer the following questions in short:
a. Why is the atmosphere essential for us?
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.
b. Differentiate between biotic and abiotic components of environment.
_____________________________________________________________________________________________________________________________________________________________________________.
C. What forms an ecosystem?
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d. Define Hydrosphere. What does it comprise of?
______________________________________________________________________________________________________________________________________________________________________________.
3. Answer the following questions in long:
a. Explain Components of Environment with the help of diagram.
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b. Write some ways/methods that can help to save the environment.
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4. HOTS (High Order Thinking Skill) question:
a. Write few lines on "World Environment Day". ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.
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Answer:
a. Environment
Environment means anything that surround us. It can be living (biotic) or non-living (abiotic) things. It includes physical, chemical and other natural forces. ... In the environment there are different interactions between animals, plants, soil, water, and other living and non-living things.
b. Ecosystem
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Wikipedia
Types
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