The following are base units used in the metric system, which is used for the standard in mass? meter liter kilogram gram

Nucleic acid certain protein cell membranes certain carbohydrates

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Which measure of an earthquake depends on how close you are to the focus?