Question

3 why might a hospital have a helicopter pad on the roof, instead of on the ground?
hint
for a clue, think about a hospital that you have seen.

Explanation:

Hospitals often have limited ground space due to buildings, patients, and vehicles. A rooftop helipad saves ground space, reduces ground - level traffic interference, and shortens the distance for transporting patients from the helicopter to the hospital's emergency or critical care units (since the roof is closer to upper - floor departments like ICUs or operating rooms in many hospital layouts), allowing for faster medical attention.

Answer:

A hospital might have a helicopter pad on the roof instead of the ground to save ground space (as hospitals have limited ground area for patients, buildings, and vehicles), reduce interference with ground - level traffic, and shorten the distance for transporting patients to emergency/critical care units (as the roof is closer to upper - floor medical departments like ICUs or operating rooms in many hospital designs), enabling faster medical care.