What are two of the processes that move tectonic plates over the surface of earth

Tectonic plates float on amass of melted lava. its very hot and produces gases. these gases tend to move the plates with the compression becomes very high and the gases do not find an exit.the other reason is the plates themselves tend to move. because of the temprature gradient. the plates are hotter on the lower side which forces the plates to move up. and they are colder on the outside,which forces the plates to move downward..this is the other reason why the plates move 

Explanation:

Photosynthesis:

-Takes place in the chloroplast (in plants)

-6CO2 + 6H2O → C6H12O6 + 6O2.

-Anabolic reaction

-Happens in plants and some bacteria and protists

Cellular Respiration:

-Takes place in the mitochondria (aerobic - with oxygen) and in the cytosplasm (anaerobic - without oxygen)

-C6H12O6 + 6O2 → 6CO2 + 6H20 + energy

-Catabolic reaction

-Happens in all cells

Similarities

- Both need water

- ATP synthesis

- Electron transport chain