Carpooling decreases the amount of cars used to travel to a place, and car crashes also create traffic congestion and greatly disrupt travel for commuters. Given these facts, carpooling does what to the amount of cars and traffic congestion among the following options:
- improve
 - Riding a bike
 - uncontrolled
 - reduced heat
 - stalls
 - slows
 - increases
 - decreases


 

        decreases 