What occurs in a nuclear power plant when two lighter nuclei combine to form a heavier nucleus? A.
nuclear fusion

B.
nuclear fission

C.
a chemical reaction

D.
a neutralization reaction

area of focus

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray