Question

how was earth made how first trees and road was there and mainly mountains was there​

Answer 1

Answer:

here is your answer...

Mountains, hills and valleys make the construction of these highways more difficult, especially when there is solid rock in the way. Mountains are sliced through and used to fill the valleys so the roads will be more level. Presplitting is often used to control the highwalls.

hope it helps you...

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Answer 2

Answer:

Hey mate your answer is given below