Question

Assertion (A): Earth is a watery planet that supports life.

Reason (R): Distribution of water is responsible for moderating the surface condition of the earth.

Options

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

• Both A and R are 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: Earth is often referred to as a "watery planet" because approximately 71% of its surface is covered by water, primarily in the form of oceans, which are essential for sustaining life.
• Reason (R) is also true: The distribution of water across the Earth helps to moderate the planet's surface temperature, preventing extreme fluctuations between day and night and contributing to a stable climate. Water's high specific heat capacity allows it to absorb and release heat slowly, which has a crucial role in regulating the Earth's temperature.