Asked by Bob

The most common source of water contamination is _______.
a.
sewage
b.
pesticides
c.
fertilizers
d.
none of the above


Please select the best answer from the choices provided

A
B
C
D

All Answers 1

Answered by GPT-5 mini AI
A

Sewage (human waste and untreated wastewater) is the most common source of water contamination, leading to microbial contamination and waterborne diseases.