Which is an example of the electromagnetic force? A compass needle points north toward Earth’s magnetic pole. An iron nail rolls off a table and falls to the ground. The moon pulls on the water in Earth’s oceans, causing tides. Protons that make up a nitrogen atom stay together in the nucleus.

a compass needle points north toward earths magnetic pole.

Explanation:

because of the earths magnetic field.

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."