Sensory clues to the possible presence of hazardous materials in water include:
a. dead fish
b. unusual algae growth
c. white froth
d. all of these

What is the healthiest serving of meat

Which one of the following causes people to go through a cycle of losing weight, gaining it back, then lose it again

22. which situation describes the appropriate use of drugs? a. using your friend’s prescription drug according to label instructions b. using an over-the-counter drug according to your friend’s instructions c. using an over-the-counter drug according to label instructions d. using your friend’s prescription drug according to your friend’s instructions