Classify the following materials as a mineral, gem, ore, or none. some may have more then one answer. ruby

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.