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a colorless, odorless, gaseous element that is found in air and water. it is necessary for humans, animals and plants to live.
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a colorless, odorless, gaseous element that is found in air and water. it is necessary for humans, animals and plants to live.

User Ninja Dude
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1 Answer

7 votes

Answer:

oxygen

Step-by-step explanation:

Oxygen is found in air comprising about 21%

It is also found in water, with the chemical formula
H_(2) O

Oxygen is necessary to life

User Hannad Rehman
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