Which of the following best describes environmental quality?

a measure of how many plants and animals are living in a given area
a measure of the environment’s ability to support life
a measure of pollution and corruption in a given area
a measure of how suitable an environment is for humans

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !

can you make it bigger i can't see it

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.