albedo
evaporation
The sides of the valley heating more quickly than the air around it
Eutrophication
Mesosphere
IT is closest to the sun
The alluvial silt that covers the land during flooding increases its fertility. This is in addition to the ready supply of fresh water required for any large societal group.
Formation of carbonates in the ocean
* Formation of carbonates in the ocean * Any green plants, so forests, rainforests, timber plantations.
Photosynthesis.
A blacktop highway
The polar jet stream lies between the polar easterlies and trade winds