Fault-block mountains form when large blocks of crust are and tilted along normal faults.

Fault block mountains form when large blocks of crust are uplifted and tilted along normal faults. The uplifted blocks are called block mountains. They are formed by the movement of large crustal blocks when forces in the Earth's crust pull it apart. Some parts of the Earth are pushed upward and others collapse down.

Answer(b) 60 miles per hour;

It is the areas with lines. this may sound a little confusing, but i hope it !