Answer:
yes, even though they are still intact they can sill build up bacteria/germs.
Explanation:
Hope this helps!
Four times greater.
Laws of physics state that force will always be the result of the square of the speed. For example, if you tripled the speed the impact would be 9 times.
A be less ready for hazards in the road
D becuase they are able to use knowledge and have pretty good judgement even when they are old.