How many hours of the day is in an inner planet and outer planet

Which of the following is not a reason why shenzhen, china, is considered an emerging global city

The magnitude of an earthquake is typically calculated according to the scale.           a. mercalli   b. fujita   c. richter   d. saffir-simpson  

After railroads, the next revolution of transportation came with the development of (a) automobile (b) telegraph (c) steam engine