How we suppose to know Read the book
Answer's
#1)
Farming
#2)
Rice
#3)
There are not enough natural resources to create necessary industries
( not too shore about 3 )
#4)
Oil
BRAINEST PLEASE
Answer:
Definition: U-shaped valleys form through glacial erosion. Glaciation develops in established v-shaped river valleys where the ice erodes the surrounding rocks to create a “U” shaped valley with a flat bottom and steep sides. Glacier movement is driven by gravity
