Question

why is an open the drainage system a health hazard​

Answer 1

Explanation:

because many of the mosquitoes or any other harmful insects which may bring many diseases may increase which leads to human unhealthyness

Answer 2

Answer:

open the drainage system is a health hazard because the waste material get dump their and the bad smell,as a result many diesease we can suffer and it is the breeding ground of misquote and flies..