How long does it take for the moon to revolve around the sun

How do ecosystem respond to nature disasters such as fires and floods

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

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