geomorphology & earth landforms section 1 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 31 [SSC CML 2001]

The inner-most layer of the earth is known as

a) Asthenosphere

b) Lithosphere

c) Barysphere

d) Mesosphere

Answer: (a)

The inner core is the innermost physical layer of the Earth. The asthenosphere is the highly viscous, mechanically weak and ductilely-deforming region of the upper mantle of the Earth.

It lies below the lithosphere, at depths between 100 and 200 km below the surface, but perhaps extending as deep as 700 km.

Question : 32 [MPPCS (Pre) 2005]

What was the period of the Dinosaurs?

a) Forty crore years ago

b) Five crore years ago

c) Eighty crore years ago

d) Eighteen crore years ago

Answer: (b)

Question : 33 [UPPCS (Mains) 2014]

Which of the following range of mountains is not the result of Tertiary orogeny?

a) Alps

b) Kunlun

c) Andes

d) Applachians

Answer: (d)

Question : 34

Which one of the following definition is correct?

  1. Block mountains: These are originated by tensile forces leading to the formation of rift valleys. They are also called as Horst Mountains.
  2. Dome mountains: These are formed due to the accumulation of volcanic materials. Different types of volcanic cones (e. g. cinder cones, composite cones, basic lava cones, etc.) come under this category
  3. Mountains of Accumulations: These are originated from magmatic intrusions and up warping of the crustal surface. Examples are Normal domes, lava domes, batholithic domes, laccolithic domes, salt domes.
Select the correct answer using the codes given below:

a) 1 and 3

b) 1 only

c) 1, 2 and 3

d) 2 and 3

Answer: (b)

Block mountains:These are originated by tensile forces leading to the formation of rift valleys. They are also called as horst mountains.
Dome mountains: These are originated by magmatic intrusions and upwarping of the crustal surface. Examples are: Normal domes, lava domes, batholithic domes, laccolithic domes, salt domes.
Mountains of Accumulations:These are formed due to accumulation of volcanic materials. Different types of volcanic cones (e. g. cinder cones, composite cones, basic lava cones, etc.) come under this category.

Question : 35 [SSC CGL (CBE) 2016]

Winds blowing constantly in one direction in rocky deserts form

a) Yardangs

b) Chimneys

c) Demoiselles

d) Mushrooms rocks

Answer: (a)

In regions of rocky deserts, wind abrasion excavates the bands of softer rocks into long, narrow corridors, separating the steep-sided over-hanging ridges of hard rocks, called yardangs.

Instead of lying in horizontal strata upon one another, the hard and soft rocks of yardangs are vertical bands and are aligned in the direction of the prevailing winds.

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969 Geomorphology & Earth landforms based indian geography mcq section 1 question answer with explanation pdf

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