Which change increases the electric force between objects?
-two neutral objects are moved closer together.
-electrons are added to two negatively charged objects.
-two oppositely charged objects are moved farther apart.
-the charge on two positively charged objects is reduced.

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The ozone hole appears in antarctica during