Which two cranial nerves are primarily responsible for our perception of taste?

Which of the following statements regarding emotion and altruism is true

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

Which is a direct benefit of prohibiting nicotine and tabacco use in schools?