Question

The air we breathe exists in

• A. Lithosphere
• B. Troposphere
• C. Stratosphere
• D. Thermosphere

Answer 1

The correct option is B

Troposphere

The correct option is (B)

Explanation of correct option:

1. The atmosphere is the gaseous envelope that presents in the surroundings of the earth.
2. The atmosphere is divided into five zones.

Troposphere

1. It is up to 8 to 20 km zone. In this zone, cloud formation takes place, and climatic changes occur, such as thunderstorms.
2. It is the lowest layer of the earth’s atmosphere.
3. It contains around 75 to 80% atmosphere’s mass.
4. The average temperature at the troposphere surface is 59 F.

Explanation of an incorrect option:

Option (A): Lithosphere

1. The lithosphere is the solid part of the earth, and it contains three layers such as crust, mantle, and core.
2. It is the most rigid part of the earth.

Option (C): Stratosphere

1. Which is up to 60 km zone.
2. It contains the ozone layer, and as its height increases, the temperature also increases.

Option (D): Thermosphere

1. It is the atmospheric layer from up to 100 to 1000 km.
2. Artificial satellites are present in this layer, and it reflects the radio waves to earth.

Final Answer:

The air we breathe exists in the troposphere.