1. Research the most common side effects of dehydration
2. Compile a list of the first three ingredients in fluids commonly constructed to find out what is being consumed along with water

Common Side Effects of Dehydration:

headache

dizziness or lightheadedness

sleepiness

decrease in urination

low blood pressure

3 Ingredients in Fluids:

sodium

potassium

magnesium

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.

the answer is d p: cell, q: organ, r: organ system, s: tissue