The answer is a. accessible population because an accessible population is the portion of the target population to which the researcher has reasonable access.
Option A would be the appropriate one as we know the common formula of carbs is CH2O we can get C10H20O10 by that formule! :)
So the the main forces that keep the water on the surface of the planet are to do with plate tectonics. If the plates were to stop moving, the water probably would eventually be absorbed into the interior, although this process would take a very long time indeed.
