The west coast is easier to access, seen as it is right beside water. The water also makes it easier to transport goods, irrigate crops, and clean clothes/utensils. The interior is harder to get at because you would either have to use many materials building wagons, or travelling for much too long on foot or horseback.
Answer:
1. The San Andreas Fault in California
2. The mid Atlantic ridge
3. The Andes Mountains
4. A result of the collision between the indian plate and Eurasian plate.
5. Focills, glaciers, and complementary coastlines
Explanation:
Do you maybe have a pic? If u do I might be able to help :D