Which pair of objects has the largest gravitational force? Choose the correct answer.

marble and car

marble and baseball

car and bowling ball

There is no gravitational force between any of these pairs of objects.

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air