Answer the following questions ... these questions are of class 7th question from ncert geography book..
Why is the atmosphere essential for us? (Write in three points)
Differentiate between natural and human environment. (write in three points)
Why was the environment quite well during the early period? (write in three points)
Answers
Answer:
1.The atmosphere is essential for life for the following reasons:
(a) Oxygen, which is essential for the survival of all living organisms, is present in the atmosphere.
(b) Essential gases that support life on the earth are present in the atmosphere.
(c) Water cycle would not have been possible without the atmosphere.
2.The natural environment encompasses all living and non-living things occurring naturally on Earth. It is an environment that encompasses the interaction of all living species. Human environment is developed from the natural environment with the adaptation of human beings to their surroundings.
3 .There were very limited needs of early men. There were no industries, transport or other means which could produce harmful gases.
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