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From what does the ozone layer protect the earth

Geography

1 answer:

LenKa [72]3 years ago

8 0

Ultra violent radiation

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This problem can be solved by a simple rule of three.

The problem states that Mercury has a dansy of 30 lbs/L, and asks what is the density in kg/L. We have to convert from lbs to kg.

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This means that mercury's density in kg/L is 13.62, letter D. Letter A is also 13.62, however it is not in the unit asked.

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