Biology Made Easy

Deforestation and Its Causes

 What is Deforestation?

Deforestation means cutting down forests and using that land for other purposes.

Forests are very important because they:

  • Give us oxygen
  • Provide food and medicines
  • Are homes for animals
  • Help in rainfall and climate control

Today, deforestation is a major threat to plants and animals.

 Causes of Deforestation

Deforestation happens due to two main types of causes:

Deforestation
   ├──NaturalCauses
   └── Man-made Causes

 Natural Causes of Deforestation

These happen without human involvement.

Examples:

  •  Forest fires (due to lightning or extreme heat)
  •  Severe droughts
  •  Floods and storms
  •  Pest and insect attacks
  •  Volcanic eruptions
  •  Landslides

 Flow Chart — Natural Causes

Natural Events

Damage to forests

Trees die or burn

Deforestation

 Man-made Causes of Deforestation

These are caused by human activities and are the main reason for forest loss.

Examples:

  •  Clearing land for agriculture
  •  Building houses and cities
  •  Setting up factories and industries
  •  Cutting trees for furniture
  •  Using wood as fuel
  • Construction of roads and railways
  •  Mining activities
  •  Overgrazing by cattle
  • Paper production

 Flow Chart — Man-made Causes

Human Needs & Activities

Cutting of trees

Loss of forest area

Deforestation

 Summary

  • Deforestation = clearing of forests
  • It threatens plants, animals, and humans
  • Causes are of two types:
    • Natural (fires, droughts, floods)
    • Man-made (farming, buildings, mining)
  • Man-made causes are the major reason today

 Activity Tip:

When your teacher asks, you can present the causes in a neat table:

Natural CausesMan-made Causes
Forest firesAgriculture expansion
DroughtBuilding houses
Floods/stormsFactories
Pest attacksFurniture making
LandslidesMining & roads

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