Which process in involved in deepwater currents? A. convection

B. conduction

C. condensation

D. radiation

Which of the following is defined as combinations of soil particles that vary in size and shape?

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4