85 °F equals how many °C?
A:20.41
B:20.84
C:21.34
D:41.10.
E:29.44

wha is what i will use to get my free points

my teacher would say no s

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.