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Subjects
Science CBSE
Class 6
Air around us
The air composition and air pollution
7.
Gases used by plants and animals
Exercise condition:
3
m.
State true or false
:
1
.
The major part of air is oxygen.
False
True
2
.
All the animals inhale dissolved oxygen in water.
False
True
3
.
Windmills are used to run flour mills for grinding.
True
False
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