A water molecule (H2O) will have a slightly positive side, and a slightly negative side. The oxygen side of water is the one that is negative, while hydrogen side tends to be more positive. When a molecule has a half negative and half positive side like water does, it is called a polar molecule. :D
I'm not entirely sure, but I think it is B) the pulley.
Answer:
my guess would be binary fission, in not 100% sure
Explanation:
