Question

4. Answer these questions briefly.
a) Why shouldn't there be water stagnation?​

Answer 1

Answer:

Because it will lead to mosquito breeding and will increase infections of malaria, dengue, etc etc etc etc......

Answer 2

Answer:

Malaria and dengue are among the main dangers of stagnant water, which can become a breeding ground for the mosquitoes that transmit these diseases.

Stagnant water can be dangerous for drinking because it provides a better incubator than running water for many kinds of bacteria and parasites. Stagnant water is contaminated with human and animal feces, particularly in deserts or other areas of low rainfall.[2] Water stagnation for as little as six days can completely change bacterial community composition and increase cell count.[3]

That's why to avoid this water stagnation is avoided

Explanation:

I hope it's helpful