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Geography > Soil > Flashcards

Soil Flashcards

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1
Q

Some factors that determine the type of soil found in India

A

Parent material
Relief
Climate
Natural vegetation

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2
Q

State in which mostly red soil is found

A

Tamil Nadu
Karnataka

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3
Q

Disadvantage of red soil

A

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

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4
Q

Soil most suitable for coffee cultivation

A

Laterite soil

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5
Q

Soil found in eastern ghats

A

Red soil

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6
Q

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

A

Black soil
Cotton

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7
Q

Why laterite soil is unsuitable for agriculture?

A

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

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8
Q

Khadhar is __________ fertile than bhangar

A

More

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9
Q

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

A

Laterite soils

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10
Q

Laterite soil is found in

A

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

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11
Q

One feature of mountain soil

A

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

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12
Q

4 major soils

A

Black or regur soil
Laterite soil
Red soil
Alluvial soil

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13
Q

2 characteristics of black soil

A

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

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14
Q

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

A

Top soil

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15
Q

Soil of volcanic origin

A

Black soil

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16
Q

Indian soil formed by leaching

A

Laterite soil

17
Q

Good for coffee growth and cashew nut growth

A

Laterite soil

18
Q

Explain gully erosion

A

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

19
Q

Explain soil texture

A

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

20
Q

Explain contour ploughing

A

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

21
Q

Explain slip erosion

A

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

22
Q

Explain strip cropping

A

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

23
Q

Useful for cultivation of jute

A

Alluvial soil

24
Q

Formed by decomposition of metamorphic rocks

A

Red soil

25
Q

40% of land area of India

A

Alluvial soil

26
Q

Develops on old crystalline rocks under moderate to heavy rainfall

A

Red soil

27
Q

Alkaline in nature and contains high proportion of salts

A

Desert soil

28
Q

Wind is main agent of erosion in

A

Rajasthan

29
Q

Water is the main agent of erosion

A

Meghalaya

30
Q

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

A

By building shelter belts

Geography (3 decks)

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