Uv light is light that covers the electromagnetic spectrum from infrared to near-ultraviolet, or all wavelengths that are useful to plant or animal life
DNA, nucleosome, coils, supercoils, chromosome.
Solving problems with science means that to solve the problem the scientific method is used. This method includes observing, research, hypothesis , test and conclusion with a help of lot high level theory.
Without science there is not strict process to follow in order to resolve the problem end get to a solution.
Answer: Newton's 3rd Law of Motion - For every action, there is an equal but opposite reaction.
Explanation: Ex. Action - A book pushes down on a desk. Reaction - Desk pushes up on book.