Water-borne diseases, including cholera, typhoid, and dysentery, are caused by drinking water containing infectious viruses or bacteria, which often come from human or animal waste. Water-washed diseases, such as skin and eye infections, are caused by lack of clean water for washing.
Gallons. You buy gasoline by the gallon.
I think it’s DNA molecule
Answer:
They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick.
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D because they help in photosynthesis to make food for plant