Equinoxes occur on about march 21 and september 22.

At which point on the diagram do convection currents occur to drive plate movement?

Triangle xyz is translated 4 units up and 3 units left to yield triangle x'y'z' what is the distance between any two corresponding points on triangle xyz and trianglex'y'z' ?

What type of aid does nigeria receive? short term, tied, voluntary, bilateral, multilateral or long-term?