Q.1) The __________ soil needs only little irrigation. This is because it retains soil moisture.

A. red
B. black (Correct Answer)
C. laterite
D. Alluvial

Q.2) In India, Soil erosion occurs in almost all the littoral states. Where is it most serious?

A. Along the coast of Tamil Nadu
B. Along the coast of Kerala (Correct Answer)
C. Along the coast of Karnataka
D. Along the coast of Odisha

Q.3) The _______ state has very little area under alluvial soil.

A. Madhya Pradesh (Correct Answer)
B. Uttar Pradesh
C. Arunachal Pradesh
D. None of these

Q.4) What is the major cause of lack of humus in laterite soils?

A. High microbial activity rate (Correct Answer)
B. Low temperature
C. High iron concentration
D. None of these

Q.5) The layers in soil are termed as?

A. profile
B. horizons (Correct Answer)
C. pedocals
D. None of these

Q.6) ___________ develops cracks when dry and soil swells when wet.

A. red soil
B. black soil (Correct Answer)
C. laterite soil
D. None of these

Q.7) _________ soil owes its color to oxides of iron.

A. red
B. black
C. laterite (Correct Answer)
D. None of these

Q.8) The ________ soil requires least application of fertilizers as it naturally gets renewed.

A. red
B. black
C. laterite
D. Alluvial (Correct Answer)

Q.9) Name the kind of soil that predominates in the Sunderbans area.

A. red
B. black
C. laterite
D. Alluvial (Correct Answer)

Q.10) What does the Mountain soil contains?

A. clay
B. iron salts
C. coarse material (Correct Answer)
D. None of these

Q.11) How can Wind erosion of soil be controlled?

(i) the creation of wind breaks
(ii) terrace cultivation
(iii) irrigation
(iv) the removal of vegetation
A. i and iii (Correct Answer)
B. ii and iii
C. i and ii
D. ii and iv

Q.12) Among the following options, what is not true about Laterite soil?

A. Laterite soil is highly porous
B. Laterite soil is poor in fertility of grain crops
C. Laterite soil is not good in iron compounds (Correct Answer)
D. None of these

Q.13) Peaty soil is found in?

A. Uttarakhand (Correct Answer)
B. Kashmir valley
C. Rajasthan
D. None of these

Q.14) How can we check Soil erosion due to running water?

(i) mulching
(ii) afforestation
(iii) terraced cultivation
(iv) check on grazing
A. i and ii
B. ii and iii
C. None of these
D. All these (Correct Answer)

Q.15) Where is the rate of erosion in a stream highest?

A. velocity is more (Correct Answer)
B. breadth is greater
C. the river joins the sea
D. None of these

Q.16) Black cotton soil of India belongs to __________ group.

A. podzol
B. alluvial
C. chemozem (Correct Answer)
D. None of these

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