Which of the following is the source of energy for nuclear energy? Select one:
O a. Nuclear fusion
O b. Nuclear fission
OC. Nuclear Inclusions
O d. Nuclear Reactions

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils