Question 1

What percentage of the earth's surface is covered with water?

Accepted Answer

Approximately 71 percent of the earth's surface is covered with water, but a major portion of it is saline water in oceans, leaving only a small fraction as freshwater available for human use.

Question 2

Out of the total water on Earth, what is the approximate percentage of freshwater?

Accepted Answer

Freshwater accounts for only about 2.5 percent of the total water on Earth, with the vast majority being trapped in glaciers, ice caps, or deep underground.

Question 3

Which of the following is a renewable resource?

Accepted Answer

Water is considered a renewable resource because it is continuously renewed and recharged through the hydrological cycle (water cycle) involving evaporation, condensation, and precipitation.

Question 4

Who proclaimed dams as the 'temples of modern India'?

Accepted Answer

Jawaharlal Nehru proclaimed dams as the 'temples of modern India' because they integrate development in agriculture and the village economy with rapid industrialization and urban economy.

Question 5

The Sardar Sarovar Dam is built on which river?

Accepted Answer

The Sardar Sarovar Dam is built on the Narmada River in Gujarat, which is one of the largest water resource projects of India covering multiple states.

Geography: Water Resources — CBSE Class 10 Social Science Important Questions & Revision Notes