Because Earth Sciences covers a lot of ground (pun intended) and nobody has the time or ability to do everything well and thouroughly. The field is very highly specialized in its subdivisions.
The correct answer is False. Planets travel on their elliptical orbits. They move faster when they are closer to the sun. The presence of external gravitational forces and elliptical orbit will never give them a constant rate.
The major impact for the population to inhabit those areas most likely experience high water temperatures, steam coming from the ground, and occasional shakes from the ground. Hope this helps :)
