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WorksheetsS2 IS - 7.01 Air, Gas and Atmosphere
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Oxygen makes up approximately (a) % of the Earth's atmosphere.
a)
21
b)
50
c)
78
d)
99
2.
The most abundant gas in the Earth's atmosphere is ______.
a)
nitrogen
b)
carbon dioxide
c)
oxygen
d)
hydrogen
3.
The percentage of carbon dioxide in the Earth's atmosphere is approximately __________%.
a)
21
b)
50
c)
78
d)
0.04
4.
Nitrogen makes up approximately (a) % of the Earth's atmosphere.
a)
21
b)
50
c)
78
d)
99
5.
Noble gases that constitutes about (a) % of the Earth's atmosphere.
a)
0.04
b)
0.93
c)
21
d)
78
6.
Carbon dioxide is a greenhouse gas and makes up about (a) % of the Earth's atmosphere.
a)
0.04
b)
0.93
c)
21
d)
78
7.
The most abundant gas in the Earth's atmosphere is (a) .
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
8.
(a) makes up approximately 78% of the Earth's atmosphere.
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
9.
______ makes up approximately 21% of the Earth's atmosphere.
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
10.
______ makes up approximately 0.04% of the Earth's atmosphere.
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
11.
______ makes up approximately 0.9% of the Earth's atmosphere.
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
12.
______ is essential for respiration and supports the survival of most organisms.
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
13.
______ is usually used in fire extinguishers.
a)
oxygen
b)
carbon dioxide
c)
hydrogen
d)
natural gases
14.
______ can support burning.
a)
carbon dioxide
b)
oxygen
c)
hydrogen
d)
water vapour
15.
The second most abundant gas in the Earth's atmosphere is ______.
a)
nitrogen
b)
oxygen
c)
noble gases
d)
carbon dioxide
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