Question

after completing a lab activity, all chemical wastes should be a. left at your lab station for the next class b. disposed of according to teacher directions c. dumped in the sink d. taken home

Explanation:

Chemical waste in labs must be disposed of safely. Teachers usually know proper disposal methods to avoid hazards. Leaving it at the station, dumping in sink or taking home are dangerous and improper.

Answer:

B. Disposed of according to teacher directions