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Class 9

Explore popular questions from Natural Resources for Class 9. This collection covers Natural Resources previous year Class 9 questions hand picked by experienced teachers.

Natural Resources

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Q 1. The blanket like covering of earth

A

Natural resource

Atmosphere

C

Space

D

None of these

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Q 2. Which among following is natural resource?

A

Petroleum

B

Animals

C

Plastic

Both (A) & (B)

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Q 3. Which gas makes highest component of air

A

Oxygen

B

Carbon-dioxide

Nitrogen

D

None of these

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Q 4. How much earth surface is covered by water

A

0%

B

25%

C

50%

75%

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Q 5. Water pollution is caused by

A

Sewage

B

Pesticides

Both

D

None

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Q 6. Soil erosion is caused by

A

Deforestation

B

Wind action

C

Rain and run off water

All the above

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Q 7. If same crop is grown year after year, the fertility of land will

A

Increase

B

Remain same

Decrease

D

None of these

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Q 8. Green house effect

A

Decrease temperature

Increase temperature

C

May increase or decrease temperature

D

Is not related to temperature

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Q 9. UV radiations are shielded by

A

Oxygen

B

Nitrogen

Ozone

D

None of these

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Q 10. CO2 is produced by

A

Respiration

B

Combustion

Both (A) and (B)

D

None of these

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Q 11. Resources that would end up if not used judicially

A

Inexhaustible

Exhaustible

C

Both

D

None

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Q 12. Which among following are inexhaustible

A

Air

Solar radiation

C

Wild animals

D

Both (A) & (B)

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Q 13. Air is essential for survial of

Aerobic organisms

B

Anaerobic organisms

C

Both

D

None

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Q 14. The percentage of air present at about height of 500 km from earth surface is

A

10%

B

Absent

50%

D

5%

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Q 15. High amount (95% and more) of CO2 is present in atmosphere of

Mars

B

Moon

C

Earth

D

Jupiter

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Q 16. Outmost zone of atmosphere is

A

Merosphere

B

Troposphere

C

Exosphere

Stratosphere

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Q 17. During day wind moves from

A

water to land

land to water

C

Randomly

D

None

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Q 18. Smog causes problems like

A

Allergy

B

Cancer

C

Heart disease

All of them

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Q 19. Pollutants responsible for acid rain

A

CO2

SO2 and NO2

C

O3

D

None of these

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Q 20. Addition of sewage has what effect on oxygen dissolved in water

A

Increase

B

Decrease

No change

D

None of these

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Q 21. A water with high value of biological oxygen Demand (BOD) is

A

Pure

Polluted

C

Potable

D

None of these

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Q 22. Earthworm feeds on soil and produce

A

Fertilizer

Bio-fertilizer

C

Vermicompost

D

None of these

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Q 23. Plant get minerals and water form

A

Ocean

Soil

C

Air

D

None of these

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Q 24. Monoculture affects soil fertility as

A

Increase

B

Decrease

C

Unaltered

None of these

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Q 25. Melting of Glacier is result of

A

Water pollution

B

Soil pollution

Global warming

D

None of these