Chapter: Rocks and Mountains
101.

Which type of lake is formed by volcanic activities?

A. Caldera lake
B. Karst lake
C. Lagoon
D. Freshwater lake
Answer» A. Caldera lake
102.

Shield volcanoes refer to: [NDA 1993]

A. explosive lava eruptions
B. repeated lava flows
C. ejection of a wide range of pyroclastic materials
D. individual lava flows
Answer» B. repeated lava flows
103.

The Hawaii islands are the top of submerged: [NDA 1991]

A. block mountains
B. folded mountains
C. volcanic mountains
D. dome mountains
Answer» C. volcanic mountains
104.

Longest mountain range in the world is :

A. Himalayas
B. Andes
C. Karakoram
D. Ural mountains
Answer» B. Andes
105.

The average elevation of Tibetan Plateau above sea level is: [IAS 1994]

A. 2 km
B. 3 km
C. 4 km
D. 5 km
Answer» C. 4 km
106.

The youngest mountain range in the world is:

A. Western Ghats
B. Himalayas
C. Aravallis
D. Andes
Answer» B. Himalayas
107.

The largest volcano crater in the world is :

A. Vesuvius (Italy)
B. Toba (Indonesia)
C. Etna (Sicily)
D. Stromboli (Sicily)
Answer» B. Toba (Indonesia)
108.

Which of the following is a typical feature of volcanic eruption?

A. Horsts
B. Dykes
C. Basin
D. Drumlin
Answer» B. Dykes
109.

'Dykes' are especially constructed in : [CPO SI 2003]

A. Norway
B. Holland
C. France
D. United Kingdom
Answer» A. Norway
110.

Colorado in U.S.A is famous for this landform : [CPO SI 2003]

A. Grand Canyon
B. Grand Crators
C. Great Valleys
D. Great Basins
Answer» A. Grand Canyon
111.

Which of the following are true with regard to fold mountains? 1. They often act as climatic barriers 2. They receive heavy rain or snow which give rise to rivers 3. They are rich in minerals 4. They pose no problem, to communication as they contain many passes

A. I and II
B. III and IV
C. I, II and III
D. I, III and IV
Answer» C. I, II and III
112.

Formation of a rift valley is due to :

A. the formation of fold mountains
B. the forces of tension in the earth's crust
C. the subsidence of the floor of a river valley
D. the over-deepening of a valley by ice action
Answer» B. the forces of tension in the earth's crust
113.

Which of the following are formed due to collision of continental plates? [IAS 2004] 1. The Alps 2. The Himalayas 3. The Rockies 4. The Caucases mountains Select the correct answer using the codes given below:

A. 1, 2 and 3
B. 2, 3 and 4
C. 1, 2 and 4
D. 1, 3 and 4
Answer» A. 1, 2 and 3
114.

Which of the following features are product of vulcanicity? 1. Atoll 2. Caldera 3. Batholith 4. Geosyncline

A. I, II and III
B. I and IV
C. II and III
D. I, III and IV
Answer» C. II and III
115.

Formation of rnagma along the bedding plane results in :

A. Sill
B. Dykes
C. Basalt
D. Laccolith
Answer» A. Sill
116.

Which of the following are correctly matched? [IFS 1993] 1. Gneiss : Metamorphic 2. Granite : Igneous 3. Sandstone : Sedimentary

A. 1 only
B. 1 and 2
C. 2 and 3
D. 1, 2 and 3
Answer» D. 1, 2 and 3
117.

If the original day sediments are subjected to high temperature and pressure, they successively change into rocks, the correct order of which is :

A. Slate, Shale, Schist
B. Shale, Schist, Slate
C. Slate, Schist, Shale
D. Shale, Slate, Schist
Answer» D. Shale, Slate, Schist
118.

Artesian wells are found in : [Asstt Grade 1992]

A. sedimentary rocks
B. igneous rocks
C. metamorphic rocks
D. none of these
Answer» A. sedimentary rocks
119.

Sedimentary rocks are formed by the process of:

A. metamorphism
B. weathering
C. deposition
D. both (b) and (c)
Answer» D. both (b) and (c)
120.

Choose the correct statement about Sedimentary rocks: [Teachers' Exam 1994]

A. These rocks cannot be formed under water
B. These rocks are crystalline
C. The structure of these rocks is contingent on heat and pressure
D. These rocks have been deposited in layers
Answer» D. These rocks have been deposited in layers
121.

The igneous rocks are formed due to : [CDS 1992]

A. accumulation of sediments at the bottom of sea
B. granitisation
C. disintegration of magma
D. altering of metamorphic rocks
Answer» B. granitisation
122.

The formation of Extrusive rocks takes place:

A. By solidification of magma above the earth's surface
B. Due to excessive pressure at great depths
C. By deposition of magma at a great depth
D. At an intermediate depth by transformation
Answer» A. By solidification of magma above the earth's surface
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