Question

Statement 1: The damming of the rivers disrupts the natural flow of the river water.
Statement 2: Dams have increased the breeding of aquatic organisms.

• A. Statement 1 is true and statement 2 is false
• B. Statement 2 is true and statement 1 is false
• C. Both statements are true
• D. Both statements are false

Answer 1

The correct option is A Statement 1 is true and statement 2 is false

The damming of the rivers disrupts the natural flow of the river water, which has various major environmental impacts. This disruption leads to excessive sediment deposition at the bottom of the dam, resulting in rockier stream beds. The rockier river beds also disturb the aquatic ecosystem leading to poor habitat for marine life. Fragmentation of rivers by dams causes difficulty for the aquatic animals in migrating and spawning. Aquatic creatures find it difficult to breed and sustain themselves in the rocky streams, and therefore, this would cause the loss of marine life.