Because is you don’t wash your hands , the illness with be able to go thru your eyes , nose , and mouth and make us sick
A placebo is kind of a "fake" treatment but, typically the person receiving a placebo is unaware it has no medical effect on them so they believe they are feeling better. For example, a lot of anxiety meds are placebos and people don't know so their brain tricks them into thinking they are feeling less anxious. This could be used in experiments where a group believes they are affected to see how they react
Answer:
Coal, Plastics, and Radioactive Materials.
Answer: B, beta particle
Explanation:
Negatively charged beta particles are basically electrons