Name a blood disease that shows too many red blood cells

Energy derived from hot rocks and fluids beneath the earth’s surface is

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false