Question

Assertion (A): Water on earth drastically tones down day and night temperature variation.

Reason (R): Water can absorb enormous amount of heat without causing much change in its temperature.

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and Rare true but R does not explain A.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is the correct explanation of A.

Explanation:

• Assertion (A) is true: Water on Earth helps moderate temperature fluctuations between day and night. This is because water has a high specific heat capacity, meaning it can absorb and release heat slowly. This helps in preventing extreme temperature changes.
• Reason (R) is also true: Water can absorb a significant amount of heat without causing a large change in its temperature. This characteristic of water helps to moderate temperature shifts, both in daily and seasonal cycles, especially near large bodies of water.