Biology, asked by samjegan98, 10 months ago

Water pollution can
be identified by
testing its

ph level
biological oxygen demand
both a and b
none of these

pls tell i will mrk you brainlist

Answers

Answered by sidh2051

2

Answer:

ph level

Explanation:

Answered by gk1223296

1

ph level

Explanation:

if it is correct

plzmark me as brilliant

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