1. Explain the two processes that keep atmospheric oxygen and carbon dioxide at stable levels? 2. What do you think are two causes of the increase in carbon dioxide in the atmosphere?

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

The correct answer is "atomic weight".

B) movement of materials into and out of the cell

H+ + cn– + li+ + oh– mc001-4.jpg li+ + cn– + h2o