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

Define the following
CFC’s 

Define the following
Mesosphere 

Define the following
Exosphere 

Define the following
Thermosphere 

What is Atmospheric pressure?
OR
Is Atmospheric pressure the same on every place on the surface of the Earth?

Why does the atmosphere thin out at higher levels?

What are the properties of Troposphere?

What are the properties of Ionosphere?

Give reasons for the following :
The Earth does not experience extremes of temperature as in other planets.

Give reasons for the following :
The amount of water vapour in the atmosphere varies from place to place.

Give reasons for the following :
Solid particles play an important role in the atmosphere.

Give reasons for the following :
The ionosphere (thermosphere) is suited to long distance communication.

Give reasons for the following :
As a jet plane flies high in the sky, it leaves a white trail behind.

Give reasons for the following :
The exosphere allows the gas molecules to easily escape into space.

Give reasons for the following :
Dust particles plays a significant role in the atmosphere.

Atmosphere is the most dynamic element in Environment’. Discuss.

‘The atmosphere acts as a blanket or a glasshouse’. Discuss.

What kind of climate does Steppe have?

What is the mean annual rainfall in the Steppe region?

What is the extension of prairies?