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Vulcanicity Questions

The document outlines various aspects of vulcanicity, including intrusive features, the formation of sills, characteristics of composite volcanoes, and the positive and negative impacts of volcanic mountains on human activities. It also discusses the importance of collecting rock samples during field studies and provides questions related to volcanic features in Kenya. Additionally, it covers the formation of lava plateaus, differentiation between rock types, and the formation of Crater Lakes.

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2K views2 pages

Vulcanicity Questions

The document outlines various aspects of vulcanicity, including intrusive features, the formation of sills, characteristics of composite volcanoes, and the positive and negative impacts of volcanic mountains on human activities. It also discusses the importance of collecting rock samples during field studies and provides questions related to volcanic features in Kenya. Additionally, it covers the formation of lava plateaus, differentiation between rock types, and the formation of Crater Lakes.

Uploaded by

wakojuma3
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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INTERNAL LAND FORMING PROCESSES – VULCANICITY

1. The diagram below shows some intrusive features formed by vulcanicity.

Use it to answer question (a)

a) i) Name features marked X,Y, and Z (3mks)

ii) Explain how a sill is formed (4mks)

b) Describe the characteristics of a composite volcano (4mks)

c) Explain four ways in which volcanic mountains positively influence human activities.

(8mks)

d) Students carried a field study on volcanic rocks

i) Give four reasons why it is necessary to collect rock samples during such a field

study. (4mks)

ii) State two problems they are likely to have experienced during the field study

(4mks)

2. (a) Differentiate between plutonic rocks and volcanic rocks

(b) Describe how lava plateau is formed

(c) (i) Name three volcanic features found in the rift valley of Kenya

(ii) Explain four negative effects of vulcanicity in Kenya

Compiled and supplied online by Schools Net Kenya | P.O. Box 85726 – 00200, Nairobi
Tel:+254202319748 | +254 733 836593 | email: infosnkenya@gmail.com
Order answers online at: www.schoolsnetkenya.com
(d) You intend to carry out a field study of a volcanic landscape

(i) State four reasons why it is necessary to conduct a reconnaissance

of the area of study.

(ii) During your field work, you intend to study volcanic rocks, state

why you would need the following items

3. Name three volcanic features found in the Rift Valley of Kenya. (3mks)

4. Explain four negative effects of vulcanicity in Kenya. (8mks)

5. Describe how lava plateau is formed. (5mks)

6. Differentiate between sill and dyke. (4mks)

7. What is vulcanicity. (2mks)

8. Describe how Crater Lake is formed. (5mks)

9. Describe how Mt. Kenya was formed.

Compiled and supplied online by Schools Net Kenya | P.O. Box 85726 – 00200, Nairobi
Tel:+254202319748 | +254 733 836593 | email: infosnkenya@gmail.com
Order answers online at: www.schoolsnetkenya.com

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