The lower portion of atmosphere contains ______________.
Carbon dioxide
Hydrogen
Oxygen
None of these
There are ________ kinds of environments.
Two
Three
Four
Five
The body of Earth is known as ____________.
Atmosphere
Hydrosphere
Biosphere
Lithosphere
____________ consists of all the life forms environment.
Biological environment
Physical environment
Human environment
__________ consist of all the non- living things and inorganic matters.
Physical environment is also known as ______________.
Natural environment
Natural environment consist of _____________.
Air
Water
Land
Air, water and land
_____________ occurs about 29% of the total surface area of the Earth.
The environment comprises of ________ major spheres.
