Which statement is most likely a scientific law? animals need oxygen because it unlocks the energy contained in food. colonies of microscopic organisms grow faster in closed spaces because they cannot fly away. the oldest layers of rock lie below newer layers of rock on earth. healthy foods taste better than dangerous or spoiled foods.

the oldest layers of rock lie below newest layers of rock on earth

I believe the answer is B

answer:

i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!