Question

The concentration of O2 in pollutant water decrases because __________.
A) bacteria are less
B) bacteria are more
C) water is not clean
D) there is more CO2

Answer 1

b is correct option

Answer 2

hey friend here is your answer.....❤

because bacteria are more .


hope it helps you .......❤

if it so please make as brainliest......❤