Rocks and Minerals Objective Type Questions and Answers

Questions

21 Which characteristic of rocks tends to increase as the rocks are metamorphosed?

A density

B porosity

C permeability

D number of fossils present

View Answer

Answer: density

22 Igneous, sedimentary, and metamorphic rocks are usually composed of

A intergrown crystals

B minerals

C fossils

D sediments

View Answer

Answer: minerals

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23 Which of the following rocks is different from others?

A marble

B gypsum

C sandstone

D limestone

View Answer

Answer: marble

24 Which of the following statements regarding the Deccan Trap is/are correct?

1. Intense volcanic activity in the form of fissure eruption took place towards the end of Cretaceous period 2. The volcanic lava spread out in horizontal sheets 3. The regur soil found here is rich in nitrogen

Select the correct answer using the code given below:

A 1 and 2 only

B 1, 2 and 3

C 3 only

D 1 only

View Answer

Answer: 1 and 2 only

25 The Damuda series of Gondwana system has three stages, namely, Raniganj, Barren Rocks and Barakar. The middle stage is called Barren because

A it consists of coal and not iron

B it consists of iron and not coal

C it consists of neither coal nor iron

D it is a sedimentary layer consisting of shale and clay

View Answer

Answer: it is a sedimentary layer consisting of shale and clay

26 The Deccan Trap Formation was caused by

A Shield eruption

B Composite eruption

C Caldera eruption

D Flood basalt eruption

View Answer

Answer: Shield eruption

27 What does the residual hill known in desert region?

A Inselberg

B Hum

C Cirque

D None Of The Above

View Answer

Answer: Inselberg

28 Bowl shaped depression is also called as –

A Glacial trough

B Cirque

C Waki

D Barchan

View Answer

Answer: Cirque

29 Which of the following is known when the rock is remove layer by layer due to weathering?

A exfolation

B block disintegration

C dellation

D granular disintegration

View Answer

Answer: exfolation

30 Which is the principle cause of exposure of rock to the changes of temperature?

A Mechanical weathering

B Chemical weathering

C Biological weathering

D Mortification weathering

View Answer

Answer: Chemical weathering

31 Which of the following is an example of potholes in river beds?

A corrosion

B erosion

C oxidation

D hydration

View Answer

Answer: corrosion

32 How the soil erosion can be prevented?

A Growing plants on a large-scale

B Increasing cohesive force between the molecule by adding chemicals

C Making the land incline

D Deforestation

View Answer

Answer: Growing plants on a large-scale

33 Which of the following condition is most ideal for chemical weathering?

A Cold and dry

B Cold and humid

C hot and humid

D None of the above

View Answer

Answer: hot and humid

34 Which process in known as chemical weathering process?

A Expansion due to thermal energy

B Frost action

C Oxidation and Reduction

D Hydraulic action

View Answer

Answer: Oxidation and Reduction

35 What the molten rock is known when it stay under the surface of earth?

A Lava

B Magma

C Basalt

D Ignite

View Answer

Answer: Magma

36 Which metal is the most abundant in the earth crust?

A Iron

B Zinc

C Aluminium

D None of the above

View Answer

Answer: Aluminium

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