What three processes or forces
combine to set convection
currents in motion?

There are three types of heat transfer: radiation, conduction, and convection. Heating and cooling of the fluid, changes in the fluid's density, and the force of gravity combine to set convection currents in motion.

Explanation:

Three factors contribute to set convection currents in motion: 1. heating and cooling of the fluid, 2. changes in the fluid’s density, and 3. force of gravity

Explanation:

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

not sure if this is what you'r looking for nnew= nold