Two or more atoms in polymers.
Each individual college decides whether they take the credit and what they use it for.
The answer is a virus. It has been a controversial topic. It is debatable which animal kingdom it belongs to. Virus' fall into the gray area because they require others to survive: to reproduce.
(1) 9*4 - 4c = x
(2) 9*2 +2c = x
∴ 36 - 4c = 18 + 2c
18 - 4c = 2c
9 - 2c = c
9 = 3c
c = 3 mph
