Question

Which elements are present in air

Answer 1

Answer:

all the gases present in air is known as element element

Answer 2

Answer: down below

Explanation:. Constituent Chemical symbol Mole percent

Nitrogen N2 78.084

Oxygen O2 20.947

Argon Ar 0.934

Carbon dioxide CO2 0.0350

Neon Ne 0.001818

Helium He 0.000524

Methane CH4 0.00017

Krypton Kr 0.000114

Hydrogen H2 0.000053

Nitrous oxide N2O 0.000031

Xenon Xe 0.0000087

Ozone* O3 trace to 0.0008

Carbon monoxide CO trace to 0.000025

Sulfur dioxide SO2 trace to 0.00001

Nitrogen dioxide NO2 trace to 0.000002

Ammonia NH3 trace to 0.0000003

* Low concentrations in troposphere; ozone maximum in the

30- to 40-km regime of the equatorial region.

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