Question

The atmosphere is held around the earth by its______________.
Distinct zones which have their own physical environment, plant
and animal life are called______.​

Answer 1

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1) The atmosphere is held around the earth by its Gravity.

2) Distinct zones which have their own physical environment, plant and animal life are called Habitat.

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Answer 2

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• The atmosphere is held around the earth by gravity.
• Distinct zones which have their own physical, environmental, plant and animal life are called habitat.