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Soil Erosion and Conservation mcq questions and answers for competitive exams

Ramya_naidu

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Soil Erosion and Conservation mcq questions and answers for competitive exams UPSC SSC , SSC CGL, SSC CHSL, upsc Civils , Entrance exams Online test practice online free Quiz, mock practice online
16.
Bunds are constructed for the purpose of

a
Retaining water
b
Controlling soil loss
c
Both
d
None of these
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17.
If the top soil has been eroded, we retire a land and grow over it:

a
Grasses
b
Lichens
c
Legumes
d
Blue-green algae
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18.
Agrostology is related with the study of:

a
Grasses
b
Epiphytes
c
Nematode disease
d
Agricultural growth
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19.
Soil erosion can be prevented by:

a
Heavy rains
b
Over grazing
c
Afforestation
d
Deforestation
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20.
Land capability unit refers to the

a
Classifying the land
b
Grade the land
c
Both
d
None of these
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21.
Contour binding is done to check:

a
Sheeterision
b
Rill erosion
c
Gully erosion
d
Ravine formation
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22.
The plants commonly sown for crop rotation are :

a
Trigonella and Trifolium
b
Cajanus and Dalbergia
c
Dalbergia and trigonella
d
Cajanus and Aeschynomene
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23.
The soil permeability can be decreased due to blockers called:

a
Clods
b
Pans
c
Peds
d
None of these
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24.
In order to maintain proper ecological balance:

a
A tree should be planted in place of one to be cut
b
The existing forests should be cleared and new ones should be planted
c
Some quick growing anuals should be planted if a tree must be cut for other uses
d
Tree must be cut whenever necessary because the underground part performs the useful purpose
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25.
Gully erosion is the

a
Last stage of rill formation
b
Advanced stage of rill formation
c
Pre stage
d
None of these
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26.
Soil erosion in plains consequent to rain fall is initiated by:

a
Rill erosion
b
Gully erosion
c
Sheet erosion
d
All of these
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27.
Soil conservation means:

a
Prevention of spread of desert
b
To check soil erosion by afforestation
c
To check soil erosion by wind and rains
d
All of these
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28.
Deforestation causes:

a
Pollution
b
No floods
c
Soil erosion
d
None of these
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29.
Soil erosion is a Three phase phenomena

a
Detachments
b
Transportation
c
Deposition
d
All
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30.
Rotation of crop is essential for:

a
Increasing fertility of soil
b
Increasing quality of protein
c
Increasing quality of minerals
d
Getting different kinds of crops
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