Question

Name the components of the atmosphere and describe how they are useful to us

Answer 1

An atmosphere (from Modern Greek ἀτμός (atmos), meaning 'vapour', and σφαῖρα (sphaira), meaning 'sphere'[1][2]) is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.

The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%) , carbon dioxide (0.03%) and other gases in trace amounts. Oxygen is used by most organisms for respiration; nitrogen is fixed by bacteria and lightning to produce ammonia used in the construction of nucleotides and amino acids; and carbon dioxide is used by plants, algae and cyanobacteria for photosynthesis. The atmosphere helps to protect living organisms from genetic damage by solar ultravioletradiation, solar wind and cosmic rays. The current composition of the Earth's atmosphere is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms.

Answer 2

Answer:

Carbon dioxide, hydrogen, argon, helium and ozone.

The components of the atmosphere are useful to us in various ways:-

Nitrogen is required to maintain the fertility of the soil.

Oxygen is gas that living beings breath.

carbon dioxide helps plants to produce food in presence of sunlight.

ozone protects us from the harmful ultraviolet rays.

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