A catalyst lowers the activation energy of a reaction by providing a different mechanism through which the reaction can go
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C. "A" mentions that the drug killed all of the bacteria that are resistant to the drug, and that doesn't make any sense. "B" claims that all bacteria are resistant to the drug. This is not true. "D" mentions that bacteria eat the drug, which doesn't happen.
Antarctic soils exist, in general, they comprise a surface pavement (i.e., a layer of gravel, stones or boulders formed largely by weathering and the removal of fine materials mainly by wind action) and a seasonally thawed active layer over permafrost.
Answer:
I think it would be C or D
Explanation:
I'm sorry I couldn't give you the correct answer, but glad I was able to try and help you. Have a blessed day!