The edge is the term that describes in which two faces of a polyhedron meet.
Wien's displacement law states that the black-body radiation curve for different temperatures will peak at different wavelengths that are inversely proportional to the temperature.
D. When a natural disaster strikes, FEMA is there to assist the public. An answer that is not there, but one that helps is the red cross, although they are not federal.
The answer is (c) Mountain Ranges. Think of it like when two cars collide head-on, the hoods of the cars bend upward under extreme force. This is the same Idea except with tectonic plates. :)