On the Newtonian theory of gravity, gravitation affects anything with mass. Assuming that none of the answer choices is the only thing that exists in the universe, all of the answer choices are subject to the law of universal gravitation (hence “universal”).
Satellites, water, frogs, and stars all have mass as they are all composed of matter. Thus, all four answer choices should be circled.
The number of electrons is equal to the number of protons.
All machines are not 100% efficient because of <span>C. Friction</span>
They were produced inside stars.
Well, it would be fossilization. <- If I spelled it correctly.