Question

Dominant element of Atmosphere is-

(A) Nitrogen

(B) Argon

(C) Iron

(D) Oxygen​

Answer 1

Answer:

D oxygen

Almost 99 percent consists of oxygen and nitrogen, with argon making up most of the remainder. Carbon dioxide, essential for plant life, is present in an extremely small amount.

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Composition.

Answer 2

D) Oxygen .

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