WorksheetsCh-4 Air ( NCERT) Grade 7 Geography
Total questions: 6
Worksheet time: 60secs
Name
Class
Date
1.
In what amount is Argon, present in the air?
a)
0.28%
b)
0.75%
c)
0.93%
d)
0.86%
2.
What is the average height of troposphere??
a)
30 km
b)
18km
c)
13km
d)
43km
3.
TRUE OR FALSE When air is heated it expands
a)
True
b)
False
4.
what fraction of the Sun's heat does earth receive?
a)
1 in 2,000,000,000
b)
1 in 200,000,000,000
c)
1 in 20,000,000
d)
1 in 200,000,000
5.
When did the second supercyclone occur in Odisha?
a)
28 Sept., 1998
b)
29 October, 1999
c)
18 August, 1999
d)
29 Sept., 1998
6.
What kind of gases are present in the exosphere?
a)
Light gases like ARGON AND NITROGEN
b)
Heavyweight gases like helium and Hydrogen
c)
Light gases like helium and hydrogen
100 %
