Which best describes proper disposal technique?
a bin should be labeled "chemical wastes and hazardous waste."
a bin should be labeled "chemical wastes and broken glass."
students should know proper disposal of the chemicals they use,
students can dispose of all chemicals in the sink.

The correct answer is A. Proper disposal technique is very important because there are different types of waste. Chemical waste is very hazardous as it may cause reaction to the skin if touched or not stored properly. Chemical compatibility with the disposal bin must also be considered.

rain is the best answer

one would be wind another would be water density