12/44 = 0.2727
(X100)
= 27
( therefore the percent mass of carbon in carbon dioxide is 27%)
C. Although Alpha Centauri B is similar in size to the sun, it is much further away from earth. The sun is 8 minutes away from earth at the speed of light, while Alpha Centauri B and earth is more than 4 light years apart.
If a higher concentration of salt is placed outside of the cell membrane, the water will leave the cell to bond with it. The loss of water from this movement causes plant cells to shrink and wilt.
