Look at the map . what do you think is a reason why broadleaf forests are found so much farther north in western europe, compared to north america?

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.

answer; hydrologic cycle;