Which of the following forces causes comets to regularly return to the inner solar system after being gone for many years? A. magnetism B. gravity C. electromagnetic force D. friction

B. Gravity is the answer

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

The answer to the is true