Effects Of Human Activity On The Ecosystem

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Effects Of Human Activity On The Ecosystem
MyElimu Offline

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Not Solved Post Icon Effects Of Human Activity On The Ecosystem

1. Deforestation

  • soil erosion
  • flooding
  • loss of habitat
  • loss of valuable species
  • climatic changes
  • upsets oxygen and carbon dioxide balance
2. Air pollution

Caused by
  • burning of fossil fuel
  • exhaust fumes from motor vehicles
  • burning of garbage
3. Water pollution

Caused by
  • discharge of untreated sewage
  • discharge of inorganic waste
  • excessive use of chemical fertilizers
  • use of pesticides
Reasons for clearing forests/ deforestationTo provide:
  • land for cultivation, urban development, grazing
  • timber for construction and making paper
  • firewood

Pollution is the process by which harmful substances are added to the environment
  • air pollution from: forest fires, volcanic eruptions, biological decomposition, human activities
  • water pollution from: human activities

Conservation is necessary for the protection of plant and animal species to maintain a stable and balanced ecosystemConservation measures:
  • reducing or eliminating pollution through education and legislation
  • controlling growth of human population
  • conserving natural resources. Recycling important for conservation which conserves non-renewable natural resources but also
    • reduced the problem of waste disposal and environmental pollution
    • is economical as it saves energy and money
  • recovering wildlife, especially those species that are in danger of extinction

04-05-2014 11:29 AM
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