Soil

Question 1

Some factors that determine the type of soil found in India

Answer 1

Parent material
Relief
Climate
Natural vegetation

Question 2

State in which mostly red soil is found

Answer 2

Tamil Nadu
Karnataka

Question 3

Disadvantage of red soil

Answer 3

Soil lacks in nitrogen , organic and phosphoric acid
Less fertile
Porous in nature but NOT retentive to moisture

Question 4

Soil most suitable for coffee cultivation

Answer 4

Laterite soil

Question 5

Soil found in eastern ghats

Answer 5

Red soil

Question 6

Soil known for its self ploughing capacity
Name one crop grown in it

Answer 6

Black soil
Cotton

Question 7

Why laterite soil is unsuitable for agriculture?

Answer 7

Laterite soil is formed as a result of intense leaching.
The soil becomes hard like a brick when it dries up

Question 8

Khadhar is __________ fertile than bhangar

Answer 8

More

Question 9

Soil formed due to high temperature and high rainfall in alternating wet and dry periods.

Answer 9

Laterite soils

Question 10

Laterite soil is found in

Answer 10

Patches in the edge of the eastern plateau covering parts of Tamil Nadu , Odisha, Chotta Nagpur plateau
Hills of Meghalaya

Question 11

One feature of mountain soil

Answer 11

Mountain soil varies with increase in height due to changes in temperature and rainfall conditions change

Question 12

4 major soils

Answer 12

Black or regur soil
Laterite soil
Red soil
Alluvial soil

Question 13

2 characteristics of black soil

Answer 13

Made of clayey material
Self ploughing capacity
Known for capacity to hold moisture

Question 14

“ loose rock material, together with humus, forming the uppermost layer of earth’s crust and serving as food and moisture for plants “

Answer 14

Top soil

Question 15

Soil of volcanic origin

Answer 15

Black soil

Question 16

Indian soil formed by leaching

Answer 16

Laterite soil

Question 17

Good for coffee growth and cashew nut growth

Answer 17

Laterite soil

Question 18

Explain gully erosion

Answer 18

Gully erosion takes place when running water cuts deep ravines in absence of vegetation.
This makes soil unfit for cultivation

Question 19

Explain soil texture

Answer 19

Soil texture refers to the size of particles of the soil.
It may be gravel, sand, silt or clay.

Question 20

Explain contour ploughing

Answer 20

Farming technique used in hilly areas to prevent soil erosion. It involves ploughing along the outline of the fields in a circular manner.

Question 21

Explain slip erosion

Answer 21

During heavy rains, water filters into the soil until is unable to penetrate further by underlying impervious rocks

Question 22

Explain strip cropping

Answer 22

Farming technique in which different kinds of crops are grown in alternate rows instead of leaving strips of land uncultivated

Question 23

Useful for cultivation of jute

Answer 23

Alluvial soil

Question 24

Formed by decomposition of metamorphic rocks

Answer 24

Red soil

Question 25

40% of land area of India

Answer 25

Alluvial soil

Question 26

Develops on old crystalline rocks under moderate to heavy rainfall

Answer 26

Red soil

Question 27

Alkaline in nature and contains high proportion of salts

Answer 27

Desert soil

Question 28

Wind is main agent of erosion in

Answer 28

Rajasthan

Question 29

Water is the main agent of erosion

Answer 29

Meghalaya

Question 30

How is the migration of sand dune from Thar desert checked?

Answer 30

By building shelter belts