Plz the correct answer gets brainleast! one winter day lisa and mary have a contest to see who can find an object that will roll or slide down an icy hill in their neighborhood the fastest. lisa picks a sled and mary finds an old tire. they release their objects and the sled wins the race. if mary wishes to propose a rematch, what conditions would most favor the tire? a. a race on a less steep, grassy hill b. a race on a steeper, grassy hill c. a race on a less steep, icy hill d. a race on a steeper, icy hill

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

i believe the answer would be:

d. violin, clarinet, french horn, and tuba