By studying the composition of its volcanic rock
b) warmer, less dense air
Hope I helped! ( Smiles )
They use the process of osmosis (a special type of simple diffusion).
DNA polymerase catalyses hydrolysis reaction between adjacent nucleotides. So does contribute to DNA synthesis.
(But other enzymes e.g. DNA helicase is needed before this to unwind the DNA strand so that complementary base pairing can take place)
