Class-9,Natural Resources

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Q1) Which of the following factor does not influence the movement of air? *

1 point

Vaporization and condensation of water vapors

Atmosphere of earth

Topography over which the wind passes.

Rotation of earth

Q2) Which of the following planet have an atmosphere? *

1 point

Earth

Venus

Mars

All of these

Q3) The two forms of oxygen found in the atmosphere are- *

1 point

Water & ozone

Ozone & oxygen

Water & carbon-dioxide

Water & oxygen

Q4) Name two biologically important compounds that contain both oxygen and nitrogen. *

1 point

Carbohydrate, nucleic acid

Protein, Carbohydrate

Protein, nucleic acid.

Fats, Carbohydrate

Q5) If there were no atmosphere surrounding the earth, then the temperature of the earth will- *

1 point

Increases

Decreases

Increases during day decreases during night

Remains unaffected

Q6) Where is the major part of fresh water hound up? *

1 point

Glacier

Both Ice caps and Glacier

Neither Ice caps now Glacier

Ice caps

Q7) Rise in temperature of water due to addition of hot water into it is known as *

1 point

Thermal pollution

Air pollution

Soil pollution

Water pollution

Q8) Percentage of total water found as fresh water is _ *

1 point

46%

32%

2.5%

16%

Q9) Which of the following has the smallest soil particles? *

1 point

Sand

Loam

Silt

Clay

Q10) Soil erosion can be prevented by _____ *

1 point

Checking movements of animals

Good plant cover

Wind screen alone

Restricted human activity

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