people in a community are interested in constructing a hydroelectric dam. The pic says it all. What's the answer anyone

i think the answer is a, hope this is right, that would be my best guess.

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.

the total distance traveled by the car is

30km + 49km = 79 km .

massxgravity x heght=weightxheight= pe

4900=490xh

h=10