Middle School Geography-worksheet on 'Atmosphere and Biosphere'
Q 1 Draw a circle; turn it into a pie diagram indicating the following readings:
1.Nitrogen
2.Oxygen
3.Carbon Dioxide
Q2. Write precise answers to the following questions:
1.What is the main cause of the Sub-Polar Low Pressure Belt?
Ans:________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
2.How many LEVELS are there in Beutfort Scale? Which is the maximum? Which are the two common elements used by Sir Frances Beaufort?
Ans:________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
3.What us the “ Green House Effect”?
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4.What is Biosphere?
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5.Why does a jet plane leaves a white trial?
Ans:________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
Q3. Identify the following:
1.Radio waves are sent back to Earth from which Layer? It is ________________
2.The boundary between the troposphere and stratosphere is _________________
3.The layer which has later of ozone gas is called ________________
4.Mesopause separates Mesosphere from _________________ layer.
5.The outmost layer of the atmosphere is__________________
Q4. Mention on use of the following:
1.Dust in the atmosphere
Ans:________________________________________________________________ ____________________________________________________________________
2.Helium
Ans:________________________________________________________________ ____________________________________________________________________
3.Nitrogen
Ans:________________________________________________________________ ____________________________________________________________________
4.Water Vapour
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5.Wind mill
Ans:________________________________________________________________ ____________________________________________________________________
Q5. Draw a circle and draw the following:
1.Draw the main pressure belts.
2.Draw Tropic of Cancer and Tropic of Capricorn
Q6: Given below are the arrows showing directions. Name each one. 6 Marks
1.
2.
3.
4.
5.
6.
5 Marks
Answers
1.__________
2.__________
3.__________
4.__________
5.__________
6.__________
Q7. Mention Names of 5 great scientists who studied atmospheric conditions and made great contributions. Name them and then discoveries. (The one already mentioned in the paper should not be repeated)
1.__________________________________________________________________
2.__________________________________________________________________
3.__________________________________________________________________
4.__________________________________________________________________
5.__________________________________________________________________
6.__________________________________________________________________
