Is it true dams affect the flow of water in the rivers, cause siltation, and adversely affect the vegetation of the region.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Dams have multiple demerits like it changes the course and flow of rivers, it affects the migration of fishes, blocking the flow of sediments downstream, destroying the natural ecosystems, and affecting various agricultural lands; and if in case the dam breaks, it causes high-intensity damage to human life and ecosystem. But, above all, it causes financial loss and loss of habitat for various species. As we know, traditionally, dams are built so that the water from rivers and the rainwater can be stored and later used to irrigate the agricultural fields. But, in modern times, dams are built for multiple purposes like electricity generation, recreation, etc. These all are the merits of constructing a dam, but everything has merits and demerits; similar is the case with the construction of dams.
The correct statement would be that dams affect water flow in the rivers, cause siltation, and adversely affect the region's vegetation.

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