Following proper safety guidelines
a. minimizes the chance of accidents occurring in lab
b. involves using a fire extinguisher
c. prevents accidents from occurring in lab
d. requires using a safety shower

The answer is a. minimizes the chance of accidents occurring in the lab.

Technically, the answer could be c, because the point of safety rules is to stop accidents from happening, but accidents can still occur EVEN when you are following the rules.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.