Question

Assertion (A): The pressure belts are not fixed.

Reason (R): The pressure belts move southward in the summer season.

विकल्प

• Both A and R are true, and R is the correct reason for A.

• Both A and R are true, but R is not the correct reason for A.

• A is true, and R is false.

• A is false, and R is true.

Answer 1

Both A and R are true, and R is the correct reason for A.

Explanation:

The pressure belts are not fixed because of the seasonal shifting caused by the Earth’s tilted axis and its revolution around the Sun. Due to this tilt of 23.5°, the Sun’s direct rays shift between the Tropic of Cancer and Tropic of Capricorn over the year, causing the pressure belts to move northward or southward by about 5°. Specifically, the pressure belts move southward during the Northern Hemisphere’s winter season and northward during its summer season.