The macroscale winds are the largest of the patterns in wind. It includes westerlies as well as trade winds, hurricanes and tropical storms. It can remain at a time for several weeks. A synoptic scale is an example of a smaller macro scale circulation and that includes the mid latitude cyclones and the anticyclones.
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.
It should be true as exactly 7.52% is arable land which rounds up to 8%
It's is called sustainability