NCERT Grade 9-Natural Resources-Questions

NCERT Solutions for Class 9 Science

Find 100% accurate solutions for NCERT Class IX Science. All questions have been explained and solved step-by-step, to help you understand thoroughly. Free Download option available!

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Natural Resources

Exercise 1

1.    Why is the atmosphere essential for life?

2.    Why is water essential for life?

3.    How are living organisms dependent on the soil? Are organisms that live in water totally independent of soil as a resource?

4.    You have seen weather reports on television and in newspapers. How do you think we are able to predict the weather?

5.    We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution?

6.    Write a note on how forests influence the quality of our air, soil and water resources.

Exercise 2

7.     How is your atmosphere different from the atmosphere on Venus and Mars?

8.    How does the mean atmosphere act as a blanket?

9.    What causes winds?

10.  How are clouds formed?

11.   List any three human activities that you think would lead to air pollution.

Exercise 3

12.  Why do organisms need water?

13.   What is the major source of fresh water in the city/town/village where you live?

14.  Do you know of any activity which may be polluting this water source?

Exercise 4

15.  How is soil formed?

16.  What is soil erosion?

17.  What are the methods of preventing or reducing soil erosion?

Exercise 5

18.  What are the different states in which water is found during the water cycle?

19.  Name two biologically important compounds that contain both oxygen and nitrogen.

20.  List any three human activities which would lead to an increase in the carbon  dioxide content of air.

21.  What is the greenhouse effect?

22.  What are the two forms of oxygen found in the atmosphere?

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