Geomorphology - Geography Multiple Choice Questions and Answers for Competitive Exams

Questions
16 Which form of coal is usually used in Thermal Power Plants ?
A Anthracite
B Lignite
C Bituminous
D Peat

Answer: Option [C]

The correct answer is Bituminous. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.

17 What is the scale of earthquake intensity ?
A Beaufort scale
B Seismic scale
C Secant scale
D None of these

Answer: Option [B]

The correct answer is Seismic scale. Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize the intensity or severity of ground shaking (quaking) caused by an earthquake at a given location.

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18 The removal of curved plates of rocks layer by layer due to mechanical weathering is called :
A block disintegration
B deflation
C exfoliation
D partitioning

Answer: Option [C]

The removal of curved plates of rocks layer by layer due to mechanical weathering is called exfoliation. Exfoliation is a form of mechanical weathering in which curved plates of rock are stripped from rock below. This results in exfoliation domes or dome-like hills and rounded boulders. Exfoliation domes occur along planes of parting called joints, which are curved more or less parallel to the surface.

19 Mid-ocean ridge is formed due to the plate movement which is called :
A Convergent movement
B Divergent movement
C Transform fault movement
D Lateral slipping plate movement

Answer: Option [B]

Mid-ocean ridge is formed due to the plate movement which is called Divergent movement. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges. Divergent boundaries also form volcanic islands which occur when the plates move apart to produce gaps which molten lava rises to fill.

20 What causes an Earthquake ?
A Frequent occurrence of cyclones
B Movement of plates of earth, which float on the hot volcanic mantle below the Earth's surface
C Underground nuclear explosions
D Drilling of crude oil

Answer: Option [B]

The correct answer is Movement of plates of earth, which float on the hot volcanic mantle below the Earth's surface.

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