Human body: what is the part of the brain that keeps muscles working, together?

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation