A.determine your own fitness for driving.
Giving a self evaluation on the current physical and mental state of the person would be a good start.
For example:
can they see everything infront of them?
are they hands shaking when trying to use them?
[D] snuff
Bidis is a form of smoking tobacco. Dip is a form of chewing tobacco. Chewing tobacco is similar to dip. Snuff is the only form of tobacco that is grinded and typically sniffed into the nasal cavity.
Hope This Helped! Good Luck!