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Sunday, July 26, 2020

INDIAN AGRICULTURE MCQS SET 09

INDIAN AGRICULTURE MCQS SET 09

81) Regosols areas are characterised by
A) Khadar
B) Earth top soil
C) Bhangar
D) Humus

Answer: Earth top soil
   
82) Consider the following statements
1. Humus is not a mineral.
2. Humus helps to retain moisture in the soil.
3. It helps the plant in absorbing materials from the soil for building its body.
4. A soil looks dark on account of the presence of humus.
Which of the statements given above are correct?
A) 1,2, 3 and 4
B) 2, 3 and4
C) 1, 3 and 4
D) 1, 2, and 4

Answer: 1,2, 3 and 4
   
83) In India, the problem of soil erosion is associated with which of the following?
1. Terrace cultivation
2. Deforestation
3. Tropical climate
Select the correct answer using the codes given below
A) 1 and 2
B) Only 2
C) 1 and 3
D) 1, 2 and 3

Answer: Only 2
   
84) Assertion (A) The desert soils of India are poor in mineral nutrients and hence infertile.
Reason (R) The dearth of rainfall and humus does not allow good soil formation.
A) Both A and R are true and R explains A
B) Both A and R are true, but R does not explain A
C) A is true, but R is false
D) A is false but R is true

Answer: A is false but R is true
   
85) The term 'Regur' used to mean
A) Iaterite soil
B) deltaic soil
C) red soil
D) black cotton soil

Answer: black cotton soil

86) Saline and Alkaline soils are characterised by which of the following features?
1. They are found in drought-prone areas.
2. They can be reclaimed by adding gypsum.
3. They are sandy learns.
Select the correct answer using the codes given below
A) Only 3
B) 1 and 3
C) 2 and 3
D) 1, 2 and 3

Answer: 1, 2 and 3
   
87) Soil erosion can be prevented by
A) increasing bird population
B) afforestation
C) removal of vegetation
D) overgrazing

Answer: afforestation
   
88) Farmers are requested to mix lime with soil while farming their fields This is because
A) lime is very helpful in maintaining the water content in the soil.
B) lime decreases the acidity of soil
C) lime decreases the basicity of soil
D) high concentration of lime is necessary for the plant growth.

Answer: lime decreases the acidity of soil
   
89) Which one of the following statements is not correct ?
A) Application of lime makes the soil acidic.
B) High acidity in soil is typical humid climate.
C) Increasing soil acidity results in declining soil fertility.
D) Arid climate is characterised alkaline soil.

Answer: Application of lime makes the soil acidic.
   
90) Soils are formed by which following factors?
A) Climate
B) Time
C) Vegetation
D) All of these

Answer: All of these

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