On Earth. A small planet in our solar system. Rotating the sun. In a Galaxy we have come to call The Milky Way
The people here speak English because homogeneous means "the same."
C) mountains
I just did this and it is the right answer
The answer is; Atmospheric circulation patterns keep the temperature of an area constant.
The atmospheric circulation does not keep the temperatures in an area constant, however, they regulate temperatures through convection currents. Hot air rises as cold air mass sinks to replace the rising hot less dense air. These currents transfer energy around the globe and prevent one area from overheating.