Earthquake: the vibration or the shaking of the earth’s surface due to the movement or adjustment of large tectonic plates inside the earth is called earthquake.
Volcano: the opening in the crust of the earth through which molten rocks,, flames, ash are released is called volcano.
Answer:
Option b is correct, you can mark it
The prosperity affects how much people spend as consumers. ... An economic theory that links prosperity to consumer demand for goods and services, and that makes consumer behavior centrsl to economic decision making.