Question

The correct match for atmospheric gases is
A. Nitrogen-0.03%, Oxygen 20.95%. Аrgon-0.93% and Carbon dioxide-78.08%
B. Nitrogen-78.08%, Oxygen. 20.95%, Argon-0.93% and Carbon dioxide-20.02%
C. Nitrogen-0.03%, Oxygen-0.03%, Argon-20.95% and Carbon dioxide-1.02%
D. Nitrogen-78.08%, Oxygen-20.95%, Argon-0.93% and Carbon dioxide-0.03%

Answer 1

Hint: The atmosphere is called the blanket of the earth. It is composed of several layers and is made up of many gases. Such gases include nitrogen, oxygen, carbon dioxide, argon, hydrogen, helium, neon, radon, xenon, Krypton, etc. From these gases, nitrogen and oxygen are present in an enormous amount in the atmosphere (air).

Complete answer: In the atmosphere of earth, Nitrogen gas is present in the highest amount that is about 78%.
Then the next major gas present is oxygen that is about 21%.
Argon and carbon dioxide are present at about 0.9% and 0.03% respectively.
The other remaining gasses are present in very few amounts.

Additional information: Oxygen is a very vital gas for respiration.
Nitrogen is either fixed by bacteria or lightening into the soil.
Carbon dioxide is needed for photosynthesis which is done by plants and some bacteria such as blue-green algae.
Neon is used to make lightning arrestors, driving equipment lasers, etc. Neon in liquid form is used as a cryogenic refrigerant. As compared to liquid helium, liquid neon gas over 40 times more refrigerating capacity per unit volume.

So, the correct answer to the question is option D.

Note: The atmosphere acts as a shield against the harmful radiation coming from the stars. It also maintains a balance between the temperatures of the earth.