What is the scoring system now used in volleyball called

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?

Why is it important that salads have crunch factors, color, and appropriate dressings? a. the salad will appeal to customers with varied tastes. b. it is easy to get away with poor quality ingredients. c. it is a good way to use up leftovers. d. it will give the customer something to enjoy in each bite. e. it use more products.

Which of the following identifies the main culprit for america’s increasing weight gain?