Tectonic plates have the ability to move and slide past or into one another because of . A convection
B radiation
C conduction
D thermodynamics

area where two or more tectonic plates are moving away from each other. Also called an extensional boundary. the sudden shaking of Earth's crust caused by the release of energy along fault lines or from volcanic activity.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.

i believe it would be relationships.