Which biome has long cold winters and short summers, and is home to conifers ?

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

In which part of the body is a ball-and-socket joint found?

The smallest parts of these that retain their original properties are called