The Adverse Effects of a Dam


 
 
Concept Explanation
 

The Adverse Effects of a Dam

Dam :

A dam is a barrier constructed to control the flow of water, thus forming a reservoir.

Adverse Effect of Dam:

Some of the adverse effects of a dam are mentioned here:

  • A dam affects the diverse ecosystem ,habitat of the region, natural balance of the river , valley and the a normal world.
  • The sediments get trapped in the reservoirs o f the dam and as a result the water that get released contain little sediment. This results in decrease in the fertility of the soil. In order to increase the fertility, chemical fertilizers are used. This increase the crop cost.
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    Sample Questions
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    Question : 1

    Adverse effect of Dam are _____________________

    Right Option : D
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    Question : 2

    Which of the following are correct ?

    (a) A dam is a barrier constructed to control the flow of water, thus forming a reservoir .

    (b) A dam affects the diverse ecosystem ,habitat of the region, natural balance of the river , valley and the a normal world.

    (c) A dam fragments the river and makes the migration of fish and other aquatic animals difficult.

    Right Option : D
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    Question : 3

    What is the positive aspect of dams ?

    Right Option : C
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