What was the reason behind the success of the magadha kingdom after the persian invasion?
a. india was weak from the invasion and easy to control.
c. the magadha kingdom to overthrow the persians.
b. the kingdom united northern india.
d. the magadha kingdom rose before the persian invasion.

The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?

This is a type pf behavior that animals are born with and them to survive

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes