What is the word that means litter on the ground or harmful chemicals in the water?
1 answer:
Pollution might be the word you are looking for.
Pollution means the introduction of a substance(s) that is harmful to the environment,
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A
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Answer: Too much base was added
i guessed
Explanation:
1/5 + 1/4 =1/x
4x + 5x = 20
9x = 20
x = 2.22 hours Answer
