Answer:
Accumulation of trace elements, especially heavy metals, in the soil has potential to restrict the soil's function, cause toxicity to plants, and contaminate the food chain.
Explanation:
The major function of RNA is B) To transport genetic information.
Answer:

Explanation:
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In this case, since 1 mile equals 63360 inches and 1 hour equals 60 minutes, the resulting miles per hour turn out:

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So to solve this problem, we are going to have to set up a couple unit conversions and then cancel units:

This method can be used to convert between many different units and is a very helpful tool for questions such as these.