Download printable Social Science Class 7 Worksheets in pdf format, CBSE Class 7 Social Science Air Worksheet Set A has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Social Science Class 7 Assignments and practice them daily to get better marks in tests and exams for Grade 7. Free chapter wise worksheets with answers have been designed by Standard 7 teachers as per latest examination pattern
Air Class 7 Social Science Worksheet Pdf
Class 7 Social Science students should refer to the following printable worksheet in Pdf for Air in Grade 7. This test paper with questions and solutions for Standard 7 Social Science will be very useful for tests and exams and help you to score better marks
Class 7 Social Science Worksheet for Air
AIR
I. NAME THE FOLLOWING:
1. The greenhouse gas without which the earth would have been too cold to live:_________________
2. The most plentiful gas in the air: ______________
3. The second most plentiful gas in the air: _________________
4. The most important layer of the atmosphere: __________________
5. The layer_______________ is almost free from clouds and associated weather phenomenon, making conditions most ideal for flying aero planes.
6. It protects us from the harmful effect of the sun rays_____________________
7. The layer which helps in radio transmission___________________
II. FILL IN THE BLANKS:
1. Carbon dioxide released in the atmosphere creates an ________________ effect by trapping the heat radiated from the earth.
2. The huge blanket of air around the earth is called__________________
3. Green plants produce oxygen during____________________
4. Green plants use carbon dioxide to make their food and release_______________
5. Almost all the weather phenomena like rainfall, fog and hailstorm occur in ____________________
6. One important feature of stratosphere is that it contains a layer of ___________ gas.
7. ___________________ burn up in Mesosphere on entering from the space.
8. The upper most layer of the atmosphere is known as ________________
III ANSWER IN 2 POINTS:
1. Write two effects of global warming
2. How is the balance of oxygen maintained in the atmosphere?
3. How do plants take nitrogen?
IV ANSWER IN 3 POINTS:
4. Explain ‘Global Warming’.
5. How does air circulation take place?
V. ANSWER IN 4 POINTS:
6. Explain how the climate and weather of the earth is being adversely affected
VI OBSERVE THE DIAGRAM GIVEN BELOW AND LABEL IT:
Please click on below link to download CBSE Class 7 Social Science Air Worksheet Set A
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