Environmental Science
Which three of the following choices are examples of commons?
A.) Clean air
B.) State parks
C.) A neighbor's swimming pool
D.) Personal computers
E.) The night sky

The correct answer to this question is either A)Clean air or D)Personal computers. But I highly suggest you go with D

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.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.