<span>Ocean currents have a effect on precipitation and climate. The ocean currents bring warm water to cold places and vice versa. Without the ocean currents being the way they are, we would have the climate we have today. The precipitation part of my answer is pretty obvious. The ocean is water and water evaporates and makes clouds and then the clouds rain.</span>
Continuous deposition (or deposition)
China's "one child" policy of the late-1900s applied MOSTLY to rural areas. The one-child policy was a population control policy of China. It began during 1978 until 2015 where it was formally phased out. It was strictly enforced at the provincial level.
Heat convection. Convection is heat transfer by mass motion of a fluid such as air or water