100+ Geography Questions and Answers for Competitive Exams - 2

Question: 6

Write a note of depletion of soil fertility?

If a particular type of crop is cultivated repeatedly, the soil will be depleted with reference to its requirements.

It is necessary to cultivate crops in rotation to protect the fertility. By adding natural and artificial manures the fertility of soil can be enriched.

Question: 7

What are the natural agencies of rock weathering?

The heat energy of sun, rain, wind, waves, animals and plants are natural agencies of rock weathering.

Question: 8

How many types of soils are there?

There are four types of soil. They are red soil, black soil, alluvial soil and sandy soil.

Question: 9

How is the soil lost or reached?

The soil is lost or reached into two ways by Erosion and Depletion of soil fertility.

Question: 10

How do the weathered rocks change into fertile soils?

The soil that is formed from the rock is not fertile.

The fertility of soil is increased when plants and dead animals decay and mix with it.

Agriculture enrich the soil by adding cow dung and green leaves.