A. Tick the correct answer :
1) The gas that causes greenhouse effect is
(c) Nitrogen d) Sulphur
a) Carbon dioxide (b) Oxygen
2) The gas produed by plants during photosynthesis is
(c) Nitrogen (
a) Carbon dioxide (b) Oxygen
d) Sulphur Die
3) All the weather phenomenon like rainfall, fog and hailstorm occur in
a) Troposphere Ob) Mesosphere C) Thermosphere d) Exosphere
3. Fill in the blanks :
......is the most plentiful gas in the atmosphere.
2) Meteorites burn in.......
layer of the atmosphere.
.......is the most important layer of the atmosphere.
c)Write T for true and F for false :
1) Nitrogen and oxygen are two gases that make bulk of the atmosphere.
2) The exosphere lies just above the stratosphere.
3) Land and sea breeze are an example of seasonal winds.
4) Temperature is the measure of the degree of hotness or coldness of a place.
d)Short Answer Questions : (to be done on extra sheets)
1) How do the bacteria that live in the soil and the roots of some plants get nitrogen?
2) What is the importance of oxygen in the atmosphere?
3) What is insolation? What are its effects?
4) What is moisture?
Unscramble the given words to form E)meaningful words:
1) SNILONAT
2) AMOSPTHREE
3) BARODICNXDIEO
4) ISTMUROE
5) MPATURERETE
F)Use extra sheets to answer the following questions :
1) Write a short note on the different layers of the atmosphere?
2) What is air pressure? What are its effects?
3) What are winds? What are its three types?
4). How does rainfall occur? What is the importance of rainfall?
Answers
Answer
Nice Questions.......................................Good Morning....
Explanation:
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1) Carbon-di-oxide
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
2) Oxygen
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
3) Troposphere
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
4) Nitrogen
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
5) True
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
6) True
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
7) True
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&