There are four forces in nature. List them and state the distance over which they operate.

help?! :/

Weak - atomic
Strong - molecular
Electromagnetic - light years
Gravity - universal

Kowalski has given you a nice answer of the 4 forces and the distance (or range) over which these operate.

An interesting 'additional' piece of information is that most people imagine that 'Gravity', (which is 'universal' i.e. present everywhere in the universe) is the strongest of these. Whereas in fact Gravity is relatively weak when compared to the 'Strong' force that is prevalent at the molecular level

Hope this is of some help. (Sorry to Kowalski spell check keeps change the name)

strong, weak, electromagnetism and gravitation.