Question

what are the main constituents of the atmosphere? how are they essential for life​

Answer 1

Answer:

Nitrogen = 78%

Oxygen = 21%

Other gases (including argon carbondioxide, dust particles, smoke)= 1%

Explanation:

Nitrogen-- this gas is essential for the synthesization of nucleic acid, chlorophyll, vitamins and protien

Oxygen-- It is essential for the respiration of all living forms on the earth

Other gases-- Carbon dioxide is necessary for breathing of plants

(dust particles and smoke causes pollution in the environment)

Answer 2

nitrogen, oxygen, water vapor, carbon dioxide, methane, nitrous oxide, and ozone are extremely important to the health of the Earth's biosphere. The table indicates that nitrogen and oxygen are the main components of the atmosphere by volume.