Identifying the Second Most Plentiful Gas in Air
The question asks us to identify which gas is the second most abundant in the Earth's atmosphere from the given options. Understanding the composition of the air we breathe is key to answering this.
Atmospheric Gas Composition Explained
The Earth's atmosphere is primarily composed of a few major gases. Here's a breakdown of the main components:
- Nitrogen ($ \text{N}_2 $): This is the most plentiful gas, making up approximately $ 78\% $ of the air.
- Oxygen ($ \text{O}_2 $): This gas is essential for respiration and constitutes about $ 21\% $ of the atmosphere.
- Argon ($ \text{Ar} $): This inert gas accounts for about $ 0.93\% $ of the air.
- Carbon Dioxide ($ \text{CO}_2 $): Although crucial for the climate, it makes up a much smaller portion, around $ 0.04\% $.
- Other trace gases: Gases like Neon, Helium, Methane, Krypton, Hydrogen, etc., exist in very small quantities.
Based on these percentages, Nitrogen ($ \text{N}_2 $) is the most plentiful gas. Oxygen ($ \text{O}_2 $) is the next most abundant gas, making it the second most plentiful gas in the air.
Therefore, among the choices provided (Carbon dioxide, Hydrogen, Nitrogen, Oxygen), Oxygen is the correct answer as the second most plentiful gas in the Earth's air.
Important Questions from Atmosphere
In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index?
1. Carbon dioxide
2. Carbon monoxide
3. Nitrogen dioxide
4. Sulfur dioxide
5. Methane
Select the correct answer using the code given below.
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
1) The presence of ozone causes the reflection of radio waves to Earth.
2) Radio waves have a very long wavelength.
Which of the statements given above is/are correct?
The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?
1) There are no clouds or water vapour in the lower stratosphere.
2) There are no vertical winds in the lower stratosphere.
Which of the statements given above is/are correct in this context?
The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs
Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
