Choose the statement that best describes population density

Witch one is it soo it the the question b. a,b, c,d

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

Will give brainliest asaap plz im in a major hurry to finish which of these pairs of objects exerts the greatest gravitational force on each other? object 1 and object 3 object 4 and object 3 object 1 and object 4 object 4 and object 2