What is the noise that birds make? my brother will not agree with me when i tell him what it is.

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

True or false multiple lane changes must be done individually going through the same procedures for each lane change

How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans