Fossils are the imprints, or traces of once-living organisms preserved in rock.

Select all the true statements about the cosmic microwave background radiation

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

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