Ifis added to the single cell model of global circulation, the single cell convection system becomes a three cell convection system.

Thermal energy

Explanation:

The atmospheric circulation is a large system of movement of air along with the circulation of water and thermal energy is redistributed o the surface of the earth through this method.  The three cells namely Hadley, Ferrel, and polar cells that exist in the northern and southern parts of the world are balanced by the high and low pressures. The latitudes of 30 to 35 degrees are the place of high pressure were they diverge form.

Answer(a); // soil salinization and waterlogging;