Tag: uses and limitations of dams

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Questions Related to uses and limitations of dams

Multiple choice management of water uses and limitations of dams air, water and soil management of natural resources biology

Which of the following factors can affect the water cycle?

  1. Increase in the rate of evaporation

  2. Increase in rate of condensation

  3. Increase in the rate of collection of rain water

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The water cycle is driven by phase changes like evaporation and condensation. Increasing the rates of these processes directly impacts the cycle's intensity and distribution.

Multiple choice management of water uses and limitations of dams air, water and soil management of natural resources biology

Which of the following steps should be taken for water harvesting?

  1. Reduction in water loss.

  2. Avoid any damage to quality of water

  3. Improve water management practices

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Effective water harvesting requires a holistic approach, including reducing wastage, protecting water quality, and implementing better management practices.

Multiple choice management of water uses and limitations of dams air, water and soil management of natural resources biology

Alternatives to large dams does not exist.

  1. True

  2. False

  3. Nither

  4. Either
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Dams play an important role for hydroelectricity power plants because electricity is produced from the energy of water which rotates the turbines and electricity is generated. However, construction of large dams requires a large space and manpower too. Many alternatives are there for electricity generation other than the hydroelectric power plants on dams. Solar energy and wind energy are great alternatives for this. Moreover, construction of large dams is expensive and therefore not economic. Dams also cause climatic changes because the reservoirs in hydroelectric power plants emit greenhouse gases.
Hence, the statement given in the question is incorrect. 
So, the correct answer is 'False'.
Multiple choice management of water uses and limitations of dams air, water and soil management of natural resources biology

Check dams are build along seasonal flooded gullies for water harvesting.

  1. True

  2. False

  3. Nither

  4. Either
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A check dam is a small dam which may be temporarily or permanently constructed across a gully, a draining ditch or channel so as to slow down the speed of concentrated flows. These dams are made for harvesting water and preserving natural water of rain. Hence, these dams are made in seasonal times generally when there is heavy rainfall. The stored water then can be used for various purposes.
Hence, the statement given in the question is correct.
So, the correct answer is 'True'.