Aclient asks the nurse what causes a cold. the nurse would tell the client that the common cold is most often caused by which type of microorganism?

answer: because barriers look like ball

explanation: there round and blue like my ball

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.