2. Craters in the Sea. Only a handful of impact craters have ever been discovered under the sea. One reason is that the sea floor is harder to get to and to study than places on land. There is another reason. What is it?

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community