Because of all the industry they have there. Also because of all the mountains and how little space they have due to the huge population of Japan.
Answer:

Explanation:
Angle of depression = 
b = Height of building = 42 feet

p = Distance from the car to the base of the building
From the trigonometric identities we get

The distance from the car to the base of the building is
.
Answer:
Explanation:
we can avoid cutting trees
For number 17, the city with the highest polulation density is Tokyo. Most of Japan's people live there.