Polar molecules occur when two atoms do not share electrons equally in a covalent bond. While polar molecules have two parts with opposite charges (i.e., positive and negative), nonpolar molecules have no dipole, meaning that there is molecular symmetry, which results in no opposing charges.
Because the Independent Variable is what you change to get a different change, and that is what the Dependent Variable is.
Answer:
remove waste and other harmful substances from the body
Explanation:
