3. Environment degradation refers to the deterioration in its
physical component brought in by the biological processes
mainly by human activities to such an extent that it cannot be
set right by the self regulatory mechanism or homeostatic
mechanism of environment.
MEANING
4. Land Disturbance : A more basic cause of
environmental degradation is land damage.
CAUSES OF DEGRADATION
5. Pollution : Pollution, in whatever form ,
whether it is air , water , land or noise is
harmful for the environment.
6. OverPopulation : Rapid population growth
puts strain on natural resources which
results in degradation of our environment.
7. Landfills : Landfills pollute the environment
and destroy the beauty of the nature .
Landfills pose a great risk to the health of
the environment and the people who live
there.
8. Deforestation : It is the cutting down of
trees to make way for more homes and
industries . Deforestation contributes to
global warming as decreased forest size puts
carbon back into the environment.
9. Natural causes: Things like avalanches, quakes,
tidal waves, storms , and wildfires can totally
crush nearby animal plant groups to the point
where they can no longer survive in those
areas..
10. Process Of Environment
Degradation
The process which disturb the stability of environment and
consequently cause environment degradation.
The process of environment degradation are both natural and
anthropogenic.
11. By destroying completely or partly the natural
vegetation or original species or replacing them by
other vegetation or animal species
By introducing exotic plants and animals to any
area where such biotic communities were not
present previously.
By increasing and decreasing the original
proportion of atmospheric gases
12. By altering or modifying one or more components
of natural environment
By introducing foreign substances through the use
of chemical fertilizers, pesticides and herbicides
By manipulating environment processes such as
cloud seeding for induced precipitation. Cloud
dispersal, prevention of hailstorms etc.
By altering chemical and gaseous composition of
the atmosphere through industrialization and
urbanisation etc.
13. Over exploitation of exhaustible resources
Both surface and ground water contamination at large
scale
Land has been degraded due to accelerated rate of soil
erosion
Major Concerns
14. Types of Degradation
Environmental degradation is divided into two categories on
The basis of factors responsible for lowering the environmental
quality.
Extreme Events and Hazards
Pollution
16. Extreme Events and hazards
Man Induced Hazards
1. Physical Man Induced Hazards
2. Chemical and Nuclear Hazards
3. Biological Hazards Induced by Man
Biological Hazards(Not caused by man)
