Land Soil Water Natural Vegetation and Wildlife Resources Test

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Land Soil Water Natural Vegetation and Wildlife Resources Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following methods are used to restrict soil erosion?
A. Ploughing along contour lines
B. Strip cropping
C. Jhumming
D. Mixed farming.

A
A and B

B
A and C

C
B and D

D
B and C
Solution
Soil erosion is the loss of top fertile layer of soil either by wind or by water.
- Contour bunding is a technique used to prevent soil erosion. It is a farming practice in which planting followed by a soil elevation constructed manually. It helps in soil conservation and is a low cost and easy technique.
- Strip cropping: Cultivation in which different crops are sown in alternate strips to prevent soil erosion.
Question 2
1 / -0

Which of the following factor is helpful in controlling the soil degradation?

A
Excess use of soil

B
Excess irrigation

C
Excess use of chemical fertilizers

D
Crop rotation method

Solution

Growing of different crops in succession on a piece of land to avoid exhausting the soil and to control weeds, pests, and diseases is called crop rotation. This type of farming helps in reducing soil degradation and improves soil quality.
Question 3
1 / -0

What does the zig-zag line indicate on the map of India?

A
Advancement summer monsoon on $$1^{st}$$ June

B
Line dividing tropical evergreen and deciduous forest

C
Water divide between east and west flowing rivers

D
Line dividing annual rainfall above and below $$100$$cm

Solution

In the given map the line represents ‘water divide’ between east flowing rivers like Mahanadi, Godavari, Krishna, Cauvery etc. and west flowing rivers like Narmada and Tapti.
Question 4
1 / -0

Which of the following happens to the amount of 'Energy' when it is passed on from one tropic level to another in an ecosystem ?

A
There is no definite relation

B
It decreases

C
It increases

D
It remains constant

Solution

Only 10% of energy passed from one trophic level to another in an ecosystem. This generalization is known as 10 per cent law given by lindemann.
Question 5
1 / -0

It is important to make small check dams across the flooded gullies because they-
(i) hold water for irrigation.
(ii) hold water and prevent soil erosion.
(iii) recharge ground water.
(iv) hold water permanently.
Select the correct options from the above stated reasons-

A
(i) and (iv)

B
(ii) and (iii)

C
(iii) and (iv)

D
(ii) and (iv)

Solution

A check dam is a small, often temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity.
Question 6
1 / -0

Mulching is associated with use of ________________.

A
material to maintain soil moisture

B
soil to build barrier.

C
trenches to collect water.

D
pilled up rocks to slow down the flow of water.

Solution

A mulch is a layer of material applied to the surface of an area of soil. Its used for the following purposes:
1. to conserve moisture.
2. to improve the fertility of the soil.
3. to reduce weed growth.
Question 7
1 / -0

Supplying water to agricultural lands through canals, wells and tanks is called ______.

A
Flood

B
Cultivation

C
Irrigation

D
Water conservation

Solution

Supplying water to agricultural lands through canals, wells and tanks is called Irrigation.
Irrigation in India includes a network of major and minor canals from Indian rivers, groundwater well based systems, tanks, and other rainwater harvesting projects for agricultural activities. Of these groundwater system is the largest. In 2013-14, only about 47.7% of total agricultural land in India was reliably irrigated.
Question 8
1 / -0

Terracing helps soil conservation in ___________.

A
Plains

B
Deserts

C
Hilly areas

D
Wet areas

Solution

A terrace in agriculture is a piece of sloped plane that has been cut into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This method is called terracing. It is very useful in soil conservation in hilly or mountain areas.
Question 9
1 / -0

Where does approximately 69% freshwater on the earth occur?

A
Rivers

B
Underground

C
Tanks and ponds

D
Ice sheets and glaciers

Solution

70 percent of freshwater occurs as ice sheets and glaciers in Antarctica, Greenland and the mountainous regions of the world, while a little less than 30 percent is stored as groundwater in the world’s aquifers and only close to 1% as surface water in rivers, lakes, etc.
Question 10
1 / -0

Ploughing along the places of same elevation is known as _____.

A
Terrace farming

B
Strip cropping

C
Contour ploughing

D
Plantation farming

Solution

Ploughing along the contour lines can decelerate the flow of water down the slopes. This is called contour ploughing. Contours act like bunds. Terraces are levelled into step-like small fields with even slope.

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Re-Attempt Weekly Quiz Competition

Land Soil Water Natural Vegetation and Wildlife Resources Test - 6

Result

Land Soil Water Natural Vegetation and Wildlife Resources Test - 6

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Rank

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SHARING IS CARING

Question 1

A and B

A and C

B and D

B and C

Solution

Question 2

Excess use of soil

Excess irrigation

Excess use of chemical fertilizers

Crop rotation method

Solution

Question 3

Advancement summer monsoon on $$1^{st}$$ June

Line dividing tropical evergreen and deciduous forest

Water divide between east and west flowing rivers

Line dividing annual rainfall above and below $$100$$cm

Solution

Question 4

There is no definite relation

It decreases

It increases

It remains constant

Solution

Question 5

(i) and (iv)

(ii) and (iii)

(iii) and (iv)

(ii) and (iv)

Solution

Question 6

material to maintain soil moisture

soil to build barrier.

trenches to collect water.

pilled up rocks to slow down the flow of water.

Solution

Question 7

Flood

Cultivation

Irrigation

Water conservation

Solution

Question 8

Plains

Deserts

Hilly areas

Wet areas

Solution

Question 9

Rivers

Underground

Tanks and ponds

Ice sheets and glaciers

Solution

Question 10

Terrace farming

Strip cropping

Contour ploughing

Plantation farming

Solution

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