MCQ : Natural Resources - 2


20 Questions MCQ Test Science Class 9 | MCQ : Natural Resources - 2


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This mock test of MCQ : Natural Resources - 2 for Class 9 helps you for every Class 9 entrance exam. This contains 20 Multiple Choice Questions for Class 9 MCQ : Natural Resources - 2 (mcq) to study with solutions a complete question bank. The solved questions answers in this MCQ : Natural Resources - 2 quiz give you a good mix of easy questions and tough questions. Class 9 students definitely take this MCQ : Natural Resources - 2 exercise for a better result in the exam. You can find other MCQ : Natural Resources - 2 extra questions, long questions & short questions for Class 9 on EduRev as well by searching above.
QUESTION: 1

The main source of fresh water in India is

Solution:

Rainfall is the main source of fresh water in India. From precipitation alone (including snowfall), India receives 4,000 cubic km water. Of this, monsoon rainfall from June to September alone accounts for about 3,000 cubic km. A good part of it is lost through the process of evaporation and plant transpiration. A large part of water percolated into the ground and is available to us in the form of groundwater.

QUESTION: 2

The atmosphere of the earth is heated by radiations which are mainly

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QUESTION: 3

All of earth’s water, land and atmosphere, within which life exists is known as

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QUESTION: 4

If there were no atmosphere around the earth, the temperature of the earth will

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QUESTION: 5

The nitrogen molecules present in air can be converted into nitrates and nitrites by

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QUESTION: 6

Ozone layer is getting depleted because of

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QUESTION: 7

The amount of carbon dioxide in the atmosphere has increased in recent years. Environmentalists suggest this change is a direct result of the

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QUESTION: 8

Low visibility during cold weather is due to

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QUESTION: 9

Smog is the mixture of

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QUESTION: 10

Choose the correct sequencs.

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QUESTION: 11

In nutrient cycle, minerals tend to be dispersed through

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QUESTION: 12

What happens when rain falls on soil without vegetational cover?

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QUESTION: 13

Soil composition is dependent on weathering because

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QUESTION: 14

Top soil contains the following

Solution:

Top soil is the topmost and outermost layer of the soil, which is usually 2 inches to 8 inches layer. It is generally dark in colour due to humus, i.e., partially decayed organic matter, soil particles and living organisms as soil bacteria etc. 

QUESTION: 15

Which of the following processes is involved in the water cycle?

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QUESTION: 16

What would happen, if all the oxygen present in the environment is converted to ozone?

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QUESTION: 17

In nitrogen cycle, which bacteria are responsible for nitrification?

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QUESTION: 18

Growth of lichens on barren rocks is followed by the growth of

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QUESTION: 19

Why is it difficult to integrate nitrogen gas from the atmosphere in the nitrogen cycle of the biosphere?

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QUESTION: 20

The process of nitrogen-fixation by bacteria does not take place in the presence of

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