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Question 1:

Soil is classified on the basis of its nature and composition. In India we find six main types of soils: 1. _______ , which is rich in loam and clay; 2. _______ , which has predominantly clay; 3. ______, which is sandy to loam; 4. ______, which is stony sandy soil; 5. ______, which is sandy and poor in organic carbon; and 6. ________, which has porous clay rich in iron and aluminium hydroxides.

 

 

A )
B )
C )
D )

Question 2:

The zone above troposphere is called the ________. It is rich in ozone gas, which forms the ozone layer. 

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B )
C )
D )

Question 3:

Oxygen and _________ of stratosphere protect us from the ill-effects of ultraviolet light rays of sunlight.

A )
B )
C )
D )

Question 4:

_______ are valuable natural resources and they are crucial for our industrial, technological and cultural growth. They are classified into fuel, metallic and non-metallic. 

A )
B )
C )
D )

Question 5:

_____ occur when air gets polluted with sulphur dioxide and nitrogen oxide. Then they mix with water particles in the air to form a toxic substance. ________ lead to increased growth of algae, which leads to eutrophication.

A )
B )
C )
D )

Question 6:

The layer of air above the earth’s surface is called __________. 

A )
B )
C )
D )

Question 7:

The word ____ is derived from a latin word ‘solum’ meaning earthly material in which plants grow.

 

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B )
C )
D )

Question 8:

__ % of earth’s surface is covered with water.

A )
B )
C )
D )

Question 9:

Air gets polluted due to presence of pollutants in the _______ and it can result from both human and natural occurrences.

A )
B )
C )
D )

Question 10:

Water exists in three forms: solid, liquid, and ________.

A )
B )
C )
D )
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