Scientists are creating vaccinations that prevent people from getting bird flu. If the virus mutates, a new vaccine needs to be made. The vaccine needs to be tested, which can be dangerous. It also takes a long time for scientists to know whether the vaccine works.
Individual behavior would be Wearing a bike helmet and Social norms would be matched up with Speaking out against sexual assault.
Answer:
Everyone can benefit from lifting weights is the correct answer.
Explanation:
paralysis
chemicals that remain in contact with the skin for a long time reach the nerve supply, which can result in paralysis.
