A: The observed results are different from the expected results.
Answer:
The population will increase because grasshoppers are the prey.
I think because there is no solution to this question
Answer: Water pollution also affects the ecosystem – it can cause a phenomenon called eutrophication. This can cause fish and other aquatic organisms to die. Toxic elements dissolved in water can make their way to humans through fish or other aquatic organisms.
https://byjus.com/biology/effects-of-water-pollution/
Explanation: