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Question (31)

QN0037451

A mining area is abandoned after excavation. Deep scars and overburden remain on the surface. Which problem is most directly associated with this situation?

(A) Land degradation
(B) Increased net sown area
(C) Soil formation
(D) Forest regeneration

Correct Answer: A

Explanation:

Abandoned mining sites with deep scars and overburden contribute to severe land degradation.

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Question (32)

QN0037452

A factory releases untreated industrial effluents onto nearby land. Which measure would directly address the problem according to the chapter?

(A) Increasing irrigation
(B) Proper treatment and disposal of industrial effluents
(C) Increasing grazing
(D) Removing vegetation

Correct Answer: B

Explanation:

Proper discharge and disposal of industrial effluents and wastes after treatment can reduce land and water degradation.

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Question (33)

QN0037453

Soil takes millions of years to form only a few centimetres in depth. What does this imply for resource management?

(A) Soil can be treated as an unlimited resource
(B) Soil conservation is important because its formation is extremely slow
(C) Soil can be replaced annually
(D) Soil degradation has no long-term effect

Correct Answer: B

Explanation:

Soil formation is extremely slow, taking millions of years to form up to a few centimetres, so its conservation is important.

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Question (34)

QN0037454

Which set contains only factors involved in soil formation?

(A) Relief, parent rock, climate, vegetation and time
(B) Population, industries, roads and markets
(C) Rainfall, population, transport and trade
(D) Mining, irrigation, industries and roads

Correct Answer: A

Explanation:

Relief, parent rock, climate, vegetation and time are important factors in soil formation.

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Question (35)

QN0037455

A soil profile contains humus along with inorganic materials. Which statement is most appropriate?

(A) Soil is purely inorganic
(B) Soil contains both organic and inorganic materials
(C) Soil contains only weathered rock
(D) Soil is formed only by running water

Correct Answer: B

Explanation:

Soil consists of organic material such as humus and inorganic materials.

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Question (36)

QN0037456

A farmer in the northern plains wants to cultivate wheat and sugarcane. Which soil would generally be most suitable based on the chapter?

(A) Alluvial soil
(B) Arid soil
(C) Laterite soil
(D) Forest soil

Correct Answer: A

Explanation:

Alluvial soils are fertile and contain suitable proportions of potash, phosphoric acid and lime for crops including wheat and sugarcane.

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Question (37)

QN0037457

A soil sample from a river plain contains a higher concentration of kanker and fewer fine particles than a nearby newer deposit. It is most likely:

(A) Khadar
(B) Bangar
(C) Black soil
(D) Laterite

Correct Answer: B

Explanation:

Bangar is old alluvial soil and has a higher concentration of kanker than Khadar.

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Question (38)

QN0037458

Two alluvial soil fields are compared. Field A is newer and has more fine particles. Field B is older and has more kanker. Which field is expected to be more fertile according to the chapter?

(A) Field A
(B) Field B
(C) Both are necessarily equally fertile
(D) Neither can support crops

Correct Answer: A

Explanation:

Khadar is the newer alluvial soil. It has more fine particles and is more fertile than Bangar.

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Question (39)

QN0037459

A farmer growing cotton wants a soil with high moisture-retaining capacity. Which soil is most appropriate?

(A) Black soil
(B) Arid soil
(C) Laterite soil
(D) Forest soil

Correct Answer: A

Explanation:

Black soil is ideal for cotton and is well known for its capacity to retain moisture.

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Question (40)

QN0037460

A black-soil region experiences hot weather, after which deep cracks appear in the soil. Which effect of these cracks is highlighted in the chapter?

(A) They increase salinity
(B) They help proper aeration of the soil
(C) They prevent all water infiltration
(D) They increase soil acidity

Correct Answer: B

Explanation:

Deep cracks developed during hot weather help in proper aeration of black soil.

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Question (31)

A mining area is abandoned after excavation. Deep scars and overburden remain on the surface. Which problem is most directly associated with this situation?

Explanation:

Link:

Question (32)

A factory releases untreated industrial effluents onto nearby land. Which measure would directly address the problem according to the chapter?

Explanation:

Link:

Question (33)

Soil takes millions of years to form only a few centimetres in depth. What does this imply for resource management?

Explanation:

Link:

Question (34)

Which set contains only factors involved in soil formation?

Explanation:

Link:

Question (35)

A soil profile contains humus along with inorganic materials. Which statement is most appropriate?

Explanation:

Link:

Question (36)

A farmer in the northern plains wants to cultivate wheat and sugarcane. Which soil would generally be most suitable based on the chapter?

Explanation:

Link:

Question (37)

A soil sample from a river plain contains a higher concentration of kanker and fewer fine particles than a nearby newer deposit. It is most likely:

Explanation:

Link:

Question (38)

Two alluvial soil fields are compared. Field A is newer and has more fine particles. Field B is older and has more kanker. Which field is expected to be more fertile according to the chapter?

Explanation:

Link:

Question (39)

A farmer growing cotton wants a soil with high moisture-retaining capacity. Which soil is most appropriate?

Explanation:

Link:

Question (40)

A black-soil region experiences hot weather, after which deep cracks appear in the soil. Which effect of these cracks is highlighted in the chapter?

Explanation:

Link:

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