the white area in the center of the map indicates the current amount of ice present at the north pole. hundreds of years ago this area was much bigger. The polar ice caps continue to shrink in size. What does this say about earth's climate

the denominator has a very specific role.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

the dark variety, as they are not visible on the dark tree barks

explanation:

"d.) carbon dioxide and hydrogen sulfide"