What are potential therapies of embryonic stem cells ?

Could someone me with number one you

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

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what