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IAS Exam: Prelims Geography Goh Cheng Leong Questions: Volcanisms and Earthquakes

For the aspirants of Civil Services IAS Prelims Exam, here, we have provided the Multiple Choices Questions which are developed from the content of G C Leong’s Physical and Human Geography one of the important readings for IAS Exam:

Jan 15, 2016 15:13 IST
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Geography Subject for the Civil Services Exam is a very important component for the IAS Preparation and hence the candidates gave special emphasis on Geography. Goh Cheng Leong is one of the essential books for IAS Exam Preparation. Here we are covering the whole Goh CHeng Leong book through the Multiple Choice Questions:

Q.1. Which of the following decides landforms characteristics?

1. Fluidity of magma

2. Strength of magma

3. Manner in which magma escapes to surface

Select the correct answer from the following codes

a.Only 2
b.Only 1 and 3
c.Only 2 and 3
d.1,2 and 3

Answer: d

Explanation: landforms also depend on types of cracks, faults, and joints that it penetrates

Q.2. Consider the following statements?

1. Intrusive rocks are formed while magma thrust to surface cool and solidify within crust.

2. Plutonic rocks are Extrusive landforms

3. Igneous rocks are formed by either plutonic or volcanic activity.

Select the correct answer from the following codes

a.Only 2
b.Only 1 and 3
c.Only 2 and 3
d.1,2 and 3

Answer: b

Explanation:  Plutonic rocks are Intrusive landforms. Extrusive landforms are magma that solidify after reaching surface.

Q.3. Which of the following are intrusive landforms?

1. sills

2. dykes

Select the correct answer from the following codes

a.Only 1
b.Only 2
c.Both 1 and 2
d.Neither 1 nor 2

Answer: c

Explanation: both sills and dykes are intrusive landforms. Sills are horizontal intrusions of molten magma. Dykes are vertical intrusions.

Q.4. Consider the following statements?

1. Laccolith are saucer shaped igneous intrusions.

2.Lopolith is dome shaped igneous intrusions

3. Phacolith is lens shaped igneous intrusions

Select the correct answer from the following codes

a.Only 3
b.Only 1 and 2
c.Only 2 and 3
d.1,2 and 3

Answer: a

Explanation: laccolith- dome shaped, Lopolith- saucer shaped

Q.5. With reference to batholiths which of the following are true?

1. It is huge mass of igneous rocks

2. It is usually granite

3. They are most spectacular of intrusive landforms

Select the correct answer from the following codes

a.Only 1
b.Only 1 and 2
c.Only 2 and 3
d.1,2 and 3

Answer: d

Explanation: metamorphosed rocks and solidified magma give rise to extensive batholiths.

Q.6. Which of the following gases is present in magma?

1. CO2

2. Sulphurated hydrogen

3. Nitrogen

4. CH4

Select the correct answer from the following codes

a.Only 2 and 3
b.Only 1 , 2 and 3
c.Only 1 and 4
d.1,2,3 and 4

Answer: b

Explanation:  the magma is heavily charged with gases such as CO2 , SulPhurated hydrogen, nitrogen, chlorine and volatile substances.

Q.7. Consider the following statements?

1. Dormant volcanoes are the ones that have not erupted at all in historic times, but retains features of volcanoes

2. Active volcanoes are ones which erupt frequently and erupted in recent times.

3. All volcanoes pass through active, dormant, and extinct stages.

Select the correct answer from the following codes

a.Only 1
b.Only 1 and 2
c.Only 2 and 3
d.1,2 and 3

Answer: c

Explanation: Extinct volcanoes are the ones that have not erupted at all in historic times, but retain features of volcanoes. All volcanoes pass through active, dormant, and extinct stages, but we can never be thoroughly sure when they are extinct.

Q.8. Which of the following are extrusive landforms?

1. Cones

2. Domes

3. Dykes

4. Pyroclast

Select the correct answer from the following codes
a.Only 2
b.Only 1,2 and 3
c.Only 3 and 4
d.1,3 and 4

Answer: d

Explanation: volcanic cones are most typical extrusive features. Highly fluid lavas build up lava domes. Pyroclast are coarser fragmental rocks. Dykes are intrusive landforms.

Q.9. Sunda strait is between

a. Java and Sumatra

b. Sumatra and Malaysia

c. Java and Philippines

d. Malaysia and Thailand

Answer: a

Explanation: Mt.Kratatau is small volcanic island in Sunda Strait midway between Java and Sumatra.

Q.10. Which of the following are associated with Geysers?

1. It is associated with volcanic regions.

2. It is emitted with explosion

3. Its emission is triggered off by gases.

Select the correct answer from the following codes

a.Only 1
b.Only 1 and 2
c.Only 2 and 3
d.1,2 and 3

Answer: d

Explanation:  Geysers are fountains of hot water and super heated steam. The jet of water is emitted with explosion is often triggered off by gases seeping out of heated rocks.

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