Question

Which of the following gases is present in large quantities in the atmosphere?
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Methane

Answer 1

Hint: A blend or layer of certain gases that surrounds the planet Earth is referred to as the Atmosphere. The approximate extent of the atmosphere is around 500 kilometers above the Earth’s surface.

Complete Answer:
The constituent of the atmosphere is a mixture of gases. The prominent ones are Nitrogen, Oxygen, Argon, Carbon dioxide. Hydrogen, Helium, and other noble gases are present in very insignificant proportions. Water vapor is also present at an average of one percent at sea level. These are mainly the by-products of life that the Earth itself sustains. The contribution of Nitrogen gas in the composition of Earth's atmosphere is about seventy-eight (78%). This massive abundance of this gas is attributed to its volatility, stability, and no reactivity of Nitrogen with other earthly materials. The atmosphere is constituted by a significant twenty-one percent (21%) of Oxygen. So, option A is wrong.
Hydrogen, being lighter than air, is present in a negligible amount which is approximately 0.000055% percent. So, option B is wrong. The percentage share of Methane in our atmosphere is 0.00017 percent. So, option D is incorrect. With the highest share in the atmosphere among other gases, Nitrogen is present in abundance.
So, the correct answer is Option C.

Note: Due to the characteristics of non-volatility, stability, and non-reactivity, Nitrogen shares the major portion of the Atmosphere. This gaseous envelope is divided into five different layers according to the rising altitudes and temperature. There is almost 78℅ nitrogen gas in the earth’s atmosphere.