An environmental studies project on Air

1. AIR
KRITIKA VATS | Jr. M.Sc. RM & ID
FRM Department
An Environmental Studies project on
topic,

2. About the AIR
 Air is the mixture of gases on the earth.
 A thick blanket of air surrounding the earth’s surface is called as atmosphere.
 The moving air is called as wind.
Air, which is always around us, cannot be seen but it always felt. Air, a term often used
interchangeably with oxygen, is actually a mixture of oxygen and various other gases. But of all its
components, it is oxygen that supports life of the mankind and the wildlife. Air contains enough
oxygen to support life on earth.

3. Composition of AIR
 Air contains mainly oxygen, nitrogen and remaining
includes carbon dioxide, noble gases, water vapour, dust
particles, and traces of other gases.
 Nitrogen-78%, Oxygen-28%, Carbon dioxide-0.003%
 Air contains varying amounts of water vapour depending on
the weather of a place, air also contains dust and smoke.
 Air is a vital source that supports and makes life possible on
earth. Air regulates the temperature of the earth and causes
weather to occur. Without the atmosphere’s moderating
effect, the earth would be fried during the day and would be
freezing cold in the night. The movement of air(wind)
brings rains to us every monsoon.

4. Importance of AIR
 AIR: ESSENTIAL SUPPLIER OF ENERGY
Plants and animals, both are dependent on air and its components for generation of energy. In animal body, the cells use oxygen from
the blood (which gets dissolved in the blood during the respiration process) to generate valuable life energy in the form of ATP’s. This
biochemical reaction taking place in the body to form ATP is a basic requirement for sustenance of life on earth.
 AIR: CONDUCTING MEDIUM FOR SOUND
Air being a good conductor of sound, enables us to hear the sound of speech, cry, noise etc. Thus, in the absence of air, we simply
cannot hear anything. “Even the music instruments make use of resonance and bass with the alteration of air and sound combination.”
 AIR: HELPS WITH POLLINATION
Air or rather air flow helps with pollination by helping the pollen travel and in the process even enabling cross pollination.

5. Importance of Air
 AIR: SUPPORTER OF WATER CYCLE
Water cycle involves evaporation, condensation and precipitation. In this cycle, air
plays an important role during the precipitation stage – it is because clouds get cooled
by the air, the precipitation occurs.
 AIR: MAINTAINS TEMPERATURE ON EARTH’S SURFACE
The movement of hair between the heated land surface and cooler water surfaces helps
maintain the temperature on earth surface.
 AIR: HELPS IN TRANSPORTATION
Air facilitates flying for birds and insects as well as for air-planes and choppers. This is
due to the fact that air helps reduce the friction thus enabling transportation

6. Importance of Air
 AIR: BALANCES HUMIDITY
Land when gets wet by rains is dried due to air. The air on the immediate wet surface is very
moist. So, these moist layers of air are replaced by less moist or dry layers of air. The new dry
layer on the surface takes up moisture from wet surface and the cycle continues till the surface
dries. Thus, air help in drying by maintenance of humidity.
 AIR: NORMALISES TEMPERATURE
A piece of ice melts due to air and hot piece of metal cools due to air. Here air acts as a heat
conductor and tries to bring these materials to normal surrounding temperature. Hence the
phenomenon of ice melting and metal cooling is seen.
 AIR: HELPS GENERATE ELECTRICITY
With the help of wind turbines, the energy of the wind flowing in high speeds is tapped into to
generate electricity.

7.  AIR: MINIMIZES POLLUTION
Current lifestyle of humans is leading to all sorts of pollution. Flowing air helps reduce air
pollution by blowing away the pollution making cities suitable to live instead of polluted and
clogged vacant cities.
 AIR: IMPORTANT AIR PRESSURE
Air pressure is important for activities like spraying, spreading, forming of droplets etc. Air helps
liquid and other powder forms to disperse into fine droplets or particles. This air pressure has many
applications. In sterilization by using autoclave, steam under pressure spreads into cavities of
material to help effective microbial kill.
 AERODYNAMICS OF LANDING
Parachutes, hot air balloons and other such chutes land safely because of buoyancy and upward
pressure of air.
Importance of Air

8. Life without Clean Air
 A reduction in agricultural production
 Acid rain
 Deformities
 Blurred vision
 The greenhouse effect
 Health problems

9. Project to Restore Air Quality
Afforestation
Dedicated greenbelts
and corridors
Urban Forestry
Mass Rapid Transit
Systems
Cleaner Production
Technologies

10. SUBMITTED BY: KRITIKA VATS
JR. M.SC. RM & ID
FRM DEPARTMENT
BATCH : 2021-2023