essay on environmental degradation in 250 words
Answers
Environmental degradation refers to the deterioration in the physical component of the environment, mainly due to biological processes, but more especially due to human activity, to such a great extent that it cannot be easily restored by the self-regulatory mechanism or homeostatic mechanism of the environment.
Environmental degradation may be due to extreme events and hazards or due to pollution.
Extreme events and hazards are unexpected threats of large impact. They may be classified on the basis of causative factors. Natural hazards are caused by natural factors.
These may be terrestrial natural hazards which occur on the earth’s land surface, e.g., the continents, and are caused by endogenetic forces, e.g., volcanic eruptions, earthquakes etc.; atmospheric natural hazards which occur by atmospheric processes affecting the Jiving and non-living (abiotic) components of the natural environmental system, e.g., cyclones, forest fires etc.; and cumulative atmospheric hazards, caused by atmospheric processes which accumulate for several years in continuation, e.g., flood, drought etc.
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