Answer to Question #225950 in Physical geography for Devil

Question #225950

Describe the four zones of atmosphere and their significance in detail. Explain the types 

and sources of air pollution.


1
Expert's answer
2021-08-23T11:14:17-0400

The four zones are

  • troposphere (provides oxygen and serves as a thermal insulator),
  • stratosphere (provides ozone that protects us from harsh UV radiation),
  • mesosphere (protects us from meteors)
  • thermosphere (protects us from x-rays and UV-radiation coming from the Sun).


Main sources of pollution:

  • internal combustion engines (cars, planes)
  • burning coal and fossil fuels
  • cows
  • smoke from factories
  • chlorofluorocarbons (CFCs) and halons from refrigerators and aerosols.

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