NIOS Class 10 Social Studies Chapter 26 Environmental Degradation and Disaster Management Part 4 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Causes of Environmental Degradation

Causes of Environmental Degradation
  • A healthy environment is essential for the very existence of human society and other living organisms.
  • Consequences of environment;
    • Global warming
    • Changing climatic conditions
    • Impending water crisis
    • Decreasing fertility of agricultural land and increasing health problems.
  • To check environmental degradation there is an urgent need to take all possible steps.

Social Factors

Growing Population

Growing Population
  • Population;
    • Is the greatest resource of any country
    • A major contributory factor for development
    • It is a major cause of environmental degradation
  • Rapid growth of population has led to the excessive utilization of natural resources.
  • An enormous population additionally leads to the creation of wastes.
  • The resultant outcomes are;
    • Loss of biodiversity
    • Pollution of air
    • Water
    • Soil
    • Increased pressure on arable land.
  • These things put stress on the environment.
  • India supports 17 percent of the world population and is just 2.4 percent of the world land area.


Environmental Degradation Poverty
  • The cause and effect of environmental degradation is said to be poverty.
  • Poor people use natural resources more than the rich people.
  • Poor people use natural resources for;
    • Building their huts
    • Cooking
    • Their food
    • Meeting
    • Many other needs
  • “More the resources are utilized, the more degraded the environment” .
  • “The more the environment deteriorates, the more impoverished the poor will be” .
  • In this manner they deplete these resources quicker as they have no chance of accessing different sorts of resources that are primarily exploited by the rich.


  • A large number of poor people from villages move to towns, cities and megacities for their lives.
  • This has led to the unplanned and quick extension of cities, creating enormous pressure on infrastructural facilities.
  • People living in cities, may have the experience of these pressures on;
    • Housing
    • Water
    • Electric supply
    • Sewage
  • Metropolitan slums are a significant source of pollution and the ill effects of unhygienic conditions.
  • For the depletion of forests and irrational use of other resources occurred due to the fast pace of urbanization.

Changing Lifestyle

Changing Lifestyle
  • Compared to olden days there is a remarkable change in the style of living of people.
  • This change of lifestyle is not only among the people living in cities and towns but also the people who live in villages.
  • Changing lifestyle of people has increased their level of consumption.
  • This has also brought about the expansion of human activities that causes harm to the environment.
  • Changing lifestyle of people has contributed to;
    • Air
    • Water
    • Sound
    • Vehicular
    • Industrial pollution
  • The fallout of the quick expanding utilization of modern gadgets like fridges and conditioners is the arrival of unsafe gases in the air.
  • This has been causing global warming which is exceptionally risky.

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