What are the layers of the atmoshpere you get 10 points

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

Which element would mostly likely have an electron affinity measuring closest to zero

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n