What is the correct ratio of fossil fuel consumption between the mdcs and the ldcs?
a. mdcs 50%vs ldcs 50%
b. mdcs 80%vs ldcs 20%
c. mdcs 60%vs ldcs 40%
d. mdcs 40%vs ldcs 60%

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