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Question

The amount of oxygen in the air remains the same, because the earth gives out oxygen.


A
True
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B
False
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Solution

The correct option is B False

Air:

  • Air is a mixture of gases and its constituents retain their properties.
  • The percentage of nitrogen is 78%, Oxygen 21%, and other various gases only 1 %.

Oxygen:

  • The amount of oxygen in the atmosphere is 21%, the main producers of oxygen are plants as they release a large amount of oxygen during the process of photosynthesis.
  • The nongreen plants and other organisms that live on earth need oxygen which is provided by green plants and the maximum amount of oxygen(70%) comes from oceans.

Thus, the given statement is false.


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