When a warm front is approaching, what happens? A. advancing cold air pushes up and over retreating warm air causing warm temperatures and mild rain
B. advancing cold air pushes up and over retreating warm air causing warm temperatures and mild rain

answer; i believe the correct answer is (sporophyte);

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

explanation:

the correct answer is b

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher