The atmosphere is a mixture of several gases arrange the following gases in increasing order and sel...........

Geography and Environment (RAS) World climates

The atmosphere is a mixture of several gases, arrange the following gases in increasing order and select the correct answer using the code given below:

1. Argon

2. Nitrogen

3. Oxygen

4. Carbon dioxide

Code:

1, 2, 3, 4

2, 3, 4, 1

2, 3, 1, 4

1, 3, 4,2

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Explanation:

The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%), carbon dioxide (0.04%) 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 ultraviolet radiation, 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.