Which statement is correct with respect to gross primary productivity

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.