Coronary artery.....are the arteries that provide blood to the wall of heart !
Answer:
the answer is actually c
Explanation:
Cold air is more denser than hot air because ,when cold air of some density, say 'd' is heated, the molecules/atoms move apart from each other and so the volume expands. i hope that helped you
Answer:atom
Explanation:because it is defined as the smallest form of any given elemental item
