Indian Geography Questions Answers for Competitive Exams - 3

Question: 11

What are the ways by which the air column gets saturated?

The air column gets saturated in two ways. They are

i. When there is increase in the supply of water vapour or

ii. When there is fall in temperature.

Question: 12

What is known as snow fall?

When the dew point is above 0°C, rain fall occurs. When the dew point is below 0°C water vapour is converted into ice particles. These ice particles join together and become heavy. These heavy ice particles in the form of snow or hail because of the gravitational pull of the Earth.

Question: 13

Where does large scale evaporation take place?

Large scale evaporation takes place over water bodies such as lakes, ponds, rivers and oceans.

Question: 14

What is meant by cartography?

Cartography is both a science and art of drawings maps and diagrams.