You are presented with the question "If a force that opposes motion is applied to an object, what will happen to its speed?" and the following answer choices: 
- Plant growth is reduced
 - It will decrease
 - It will reach nano-speed
 - It will stay the same
 - kinetic energy
 - It will increase
 - Under 32 degrees
 - supersonic

Now knowing that friction causes the speed of an object to decrease and friction is a Force that opposes motion, choose the best answer.


 

  It will decrease       