ROCKS AND MOUNTAINS MCQS SET 03

ROCKS AND MOUNTAINS MCQS SET 03

1. Which of the following climatic conditions are conducive to mechanical weathering?
1. Hot
2. Cold
3. Wet
4. Dry
(a) 1 and 4
(b) 2 and 4
(c) 1 and 3
(d) 2 and 3
Ans: (c)
2. The removal of rock, layer by layer due to weathering is called:
(a) block disintegration
(b) dellation
(c) exfoliation
(d) granular disintegration
Ans: (c)
3. The denudational processes have not reduced the land masses to a level because:
(a) the sea level is changing
(b) the earth movements have uplifted the landmass
(c) there has not been enough time
(d) these processes are intermittent in action
Ans: (b)
4. Which of the following is not an agent which produces physical features ?
(a) Denudation
(b) Deposition
(c) Volcanic eruption
(d) Conduction
Ans: (d)
5. Bowl shaped depression created as a result of glacial erosion high on a mountain side is called:
(a) Glacial trough
(b) Hum
(c) Hanging Valley
(d) Cirque
Ans: (d)
6. Decaying .vegetation produces organic acids which causes a breakdown of minerals. This is :
(a) physical weathering
(b) chemical weathering
(c) both (a) and (b)
(d) chemical erosion
Ans: (b)
7. Which of the following statements is/are not true?
1. Chemical weathering is most common in limestone rocks
2. Chemical weathering is most active in wet regions with higher temperature
3. Rain action is a form of chemical weathering
4. Exfoliation is a process of chemical weathering
(a) A and D
(b) B and C
(c) A and B
(d) D
Ans: (d)
8. A V-shaped valley is a feature produced by:
(a) youthful river
(b) mature river
(c) old river
(d) all of the above
Ans: (a)
9. Residual hill in the desert region is known as : 

(a) Inlier
(b) Inselberg
(c) Playa
(d) Pediment
Ans: (b)

10. Although hot deserts have a very low annual rainfall, occasional heavy rain storms do occur and these sometimes produce steep-sided, flat-floored valleys called:
(a) gorges
(b) wadi
(c) canyons
(d) barchans
Ans: (b)