Which strategy is least likely to help one avoid the risks associated with carbon monoxide? install a carbon monoxide detector

avoid running any sort of engine in an enclosed space

learn what carbon monoxide smells like

have heating systems checked annually by a qualified expert

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.

d hope it you just got 100 on it