Gravitational force felt with in ___________ km from the Earth surface.
1600 km
99 km
32 km
45 km
The literal meaning of atmosphere
Layer of air
Sphere of air
Envelope air
None of these
Human environment consist of
Non living things
Inorganic matters
Only the life forms
Only the man made features
A 'sphere of life'.
Hydrosphere
Biosphere
Lithosphere
Physical environment is also known as
Biological environment
Human environment
Natural environment
We can protect our environment by ____________ .
Using the natural resources carefully
By preserving the natural resources as much as possible
Both 1 and 2
There are _________ kinds of environments .
Two
Three
Four
Five
Biosphere is a combination of .
Hydrosphere and lithosphere
Lithosphere and atmosphere
Lithosphere, hydrosphere and atmosphere
Natural environment consist of
Air
Water
Land
Air,water and land
We can protect our environment in _____________ ways.
Only one
