(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

Give one word for the following :
The lava which is poor in silica and rich in iron and magnesium.

Give one word for the following :
A volcano which has the possibility of erupting in future.

Give one word for the following:

A large sill of acid lava which has solidified gradually giving a dome-like shape.

Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..

Give one word for the following :
A volcano whose eruption buried and destroyed two Roman towns.

Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.

Which four of the following words are connected with volcanic activity:
Karst, crater, drumlin, stalactite, gully, potholesl, ash, basalt, swallow, holes, dyke, domes, bluffs.

Describe the distribution of volcanoes in the world.
OR
Name the important belts of volcanoes.

What are the influences of volcanoes eruption on man?
OR
What is the importance of volcanoes?
OR
Mention adverse and beneficial effects of volcanoes.

What is the following :
Fissure type of volcanoes

What is the following :
 Spine or plug

What is the following :
Epicentre 

Give one example of volcanic mountains.

Fill in the blanks with suitable words:

Volcanic activity is a ______ movement.

Name the four main pressure belts of the earth.

What is Circum-polar Low-Pressure Belt?

Name the two types of instruments used for measuring pressure. State one point of difference between them.

Give reasons for the following:

There is a seasonal shifting in pressure belts.

Give a geographical reason for the following:

Doldrums is a low pressure belt.

Explain the swinging of the pressure belts.