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What is the effect of chlorinated water on plant growth?
Answer 1:

Chlorine is a poison and isn't good for plants, although if you don't have enough chlorine in the water, it won't kill them but just slow their growth.

Answer 2:

Chlorine is toxic to plants when it is in high concentrations. Some plants can die if they are exposed to chlorine gas; there are plants particularly vulnerable to chlorine damage. However, chlorine in low concentrations is good for plants because it kills bugs that are not beneficial for certain types of plants.

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