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researchers believe that talking to plants may stimulate growth because of the carbon dioxide produced when people exhale as they speak. Since plants take in carbon dioxide, some scientists believe carbon dioxide could explain the benefit that speaking to plants seems to provide.

Explanation:

i dont understand the ;last question tho im sorry

it would lead to upper respiratory infections and pneumonia.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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