The ozone layer regulates air pollution by A) absorbing incoming UV radiation
B) keeping levels of ozone in the troposphere low
C) maintaining the Earth's temperature structure
D) absorbing all pollutants fromthe atmosphere
E) all of the above
Please select the best answer from the choices provided

not sure if this is what you'r looking for nnew= nold

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.