How does carbon cycle through the ocean, atmosphere, soil, and biosphere?

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

yes, because even though a theory has a  lot of evidence to support it, it is not always true