SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Earths’ surface is a vast area of ______ million.

Consider the given statement and choose the right option given below.

1. The nature and magnitude of weathering differ from place to place and region to region.
2. Granular disintegration takes place due to the action of volcanoes.
3. Weathering is a prerequisite in the formation of soil.

Which of the above statement is/are the right statement.

Consider the given statement and choose the right option given below.

1. Small streams that join the main river is tributary.
2. River Gangas is a tributary.

Which of the above statement is/are the right statement.

This ______ gas is chemically inactive in atmosphere.

Daniel Rutherford discovered ______ in atmosphere.

Give Reason:

Nitrogen and oxygen are called permanent gases of the atmosphere.

Write about the composition of the Atmosphere.

This ______ is a permanent gas in the atmosphere.

This ______ gas helps in protecting the earth from radiation.

Who discovered Nitrogen in the Atmosphere? When?

Consider the following statement.

1. There are four major processes involved in the water cycle.
   
2. The groundwater gets collected below the earth’s surface
   
3. The Northern hemisphere holds 81% of land
   
4. The ocean floor is flat.

Mention the four spheres of the earth.

Mention the three major processes involved in the water cycle.

Mention the three major processes involved in the Hydrological cycle.

International boundaries are marked in ______ colour codes.

A synoptic chart means ______.

Mention the three types of map symbols.

What is meant by cybercartography?

Give Reason

“It is not possible to show all the data of an area on a map”.

Give Reason

Surveys help to prepare physical maps.