Question

Which layer of the atmosphere is also called the changing sphere?

Options

• Troposphere

• Thermosphere

• Mesosphere

• Stratosphere

Answer 1

Troposphere

Explanation:

The troposphere is also called the “changing sphere” because it is the lowest layer of the atmosphere where all weather changes occur. This layer is closest to the Earth’s surface and contains most of the water vapor. Due to continuous changes in temperature, pressure, and moisture, the air in the troposphere is constantly moving and changing, which leads to the formation of clouds, precipitation, and other weather phenomena. This is why it is known as the changing sphere (Tropo means change).