which force in real will have the most effect on a bowling ball rolling down a lane towards bowling pins

air resistance
magnetism
friction
gravity

The force that will have the most effect on a bowling ball rolling down a lane towards bowling pins is friction. Friction between the ball and the lane surface will determine how fast the ball rolls and how much control the bowler has over its direction. Gravity will also play a significant role in ensuring that the ball stays on the lane and moves in the desired direction. However, air resistance and magnetism will have minimal impact on the motion of the bowling ball in this scenario.