Question

Recently it has been observed that the population of salmon is decreasing in a large river. Environmentalists believe that it is happening because of the hydropower plant set up on that river. Which technology can prevent the salmon population from decreasing? A. drift nets
B. noodling C. trapping D. fish ladders

Answer 1

Answer:

I think option A. Drift nets is correct

Please mark it as the brainliest answer if it is correct and say thanks and follow me .

Answer 2

Answer:

the answer is fish ladders

Explanation:

drift nets are a method of catching fish, noodling is fishing using ones bare hands, and trapping is also a method used to fish (all of which would decrease the numbers of salmon)

fish ladders are attached to any obstacle in the river that may prevent the movement of fish.