In our country, there are attempts to increase the height of several existing dams like the Tehri and Almatii dams. Choose the correct statements among the following that are the consequences of raising the height of dams.
(i) Terrestrial flora and fauna of the area are destroyed completely.
(ii) Dislocation of people and domestic animals living in the area.
(iii) Valuable agricultural land may be permanently lost.
(iv) It will generate permanent employment for people.
In our country, there are attempts to increase the height of several existing dams like the Tehri and Almatii dams. Choose the correct statements among the following that are the consequences of raising the height of dams.
(i) Terrestrial flora and fauna of the area are destroyed completely.
(iii) Valuable agricultural land may be permanently lost.
(iv) It will generate permanent employment for people.
The correct option is D (i), (ii) and (iii)
Building big dams or raising their height have always been controversial issues. India is a fast-growing economy and the requirement for energy is increasing manifold. However, we are deficient in oil and gas resources. Our known coal deposits are lacking both in quantity and quality. Nuclear power is not entirely safe and may lead to radiation pollution. Further, there are many restrictions on the usage of nuclear technology and it is very expensive.
In such a scenario, raising the height of existing dams for storing more water to generate more pressure for generating hydroelectricity can be considered as an alternative, but that comes with its share of challenges.
Raising the height of dams, for instance, will permanently submerge vast tracts of land. This will result in the dislocation of native people, permanent loss of indigenous plants and animals, and permanent farmland destruction.
So, if any dam is to be raised in height, all aspects should be carefully considered, such as the reestablishment of local tradition, considerations for biodiversity protection, etc.
Therefore, the correct answer is option B.
Building big dams or raising their height have always been controversial issues. India is a fast-growing economy and the requirement for energy is increasing manifold. However, we are deficient in oil and gas resources. Our known coal deposits are lacking both in quantity and quality. Nuclear power is not entirely safe and may lead to radiation pollution. Further, there are many restrictions on the usage of nuclear technology and it is very expensive.
In such a scenario, raising the height of existing dams for storing more water to generate more pressure for generating hydroelectricity can be considered as an alternative, but that comes with its share of challenges.
Raising the height of dams, for instance, will permanently submerge vast tracts of land. This will result in the dislocation of native people, permanent loss of indigenous plants and animals, and permanent farmland destruction.
So, if any dam is to be raised in height, all aspects should be carefully considered, such as the reestablishment of local tradition, considerations for biodiversity protection, etc.
