Answer:increase; increase
Explanation:
They mostly increase in both cases because when one is reaching for their cellphone or when they are dialing it , they have to take their eyes off the road for a moment .
When driving, a moment of taking your eyes of the road can be as dangerous as trying to drive blind for a second .
Teenagers usually drives in groups which means as they look for their phones they are also chatting with their friends in the car which adds even more to this destruction.
The lack of driving experience also plays a huge role in these incidents.
