Write any three ways to increase the efficiency of a machine

What is drought? what problem can cause?

What would happen to kenya's pyramid if there was a rapid decline in its: a) birth rate b) death rate

7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.