1. if an outdoor runner develops a headache, feels tired, and has an elevated heart rate, what is the most probable cause? a. dehydration b. insufficient calories c. overhydration d. lack of protein

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

Sometimes without even knowing it, people waste fresh water. write an editorial for our school newspaper. try to convince your readers that saving and recycling water should be something they do every day.

Why is the first step in responding to life-threading situations to assess the situation?