Objective
To identify the details that support the main idea.

Step 2: Read the following passage from the textbook Health: The Basics, and then answer the questions that follow it. Your instructor will tell you whether to write your answers in your book or to submit your answers online for electronic grading.

But is that $2 bottle of “pure wonder” any better than the water that comes from your municipal system? Is it more likely to be chemical-free, pest-free, and pure, as many of the labels claim? Recent studies of bottled water have shown that, indeed, most are perfectly safe for human consumption and that it is typically free of disease-causing agents. But while indeed safe and fairly free of particulate matter, a great deal of bottled water may in fact come from the same source as the water you get every time you turn on the faucet. Like your tap water, such bottled water has merely been filtered or chlorinated to help make it safe for consumption. In response to consumer demand to clarify some of the misperceptions about bottled water, in recent years the Food and Drug Administration tightened its rules for label claims regarding the sources of bottled water. Now, for bottled water to be called spring water, it must truly come from an underground spring, and sparkling water has to be carbonated. But those labels with claims of alpine, crystal clear, fresh, and glacial are only advertising ploys.

While the water initially put in the bottle may be safe, what about the last dregs of water in the bottle that is left to sit in a student backpack, or a bottle that is refilled and drunk throughout the day? Saliva backwash and bacteria from the lips and hands result in a warm, moist unsterile bottle that provides a vastly different portrait of cleanliness and crystal-clear clarity than the bottle you opened fresh from the store. So, is bottled water worth the extra cost? Most experts say no.

Bottom line? Yes, the world’s water supply is becoming increasingly unsafe. However, rather than buying expensive bottled alternatives, you would be well advised to check on the quality of the water coming from public sources in your community. Also, sink-mounted reverse-osmosis systems are now available that, when added to the purification capability of your municipal system, might be far better investments over time.

—Donatelle, Health: The Basics, p. 384

		7. What source of water does the FDA require in order for a bottled water to be labeled “spring water”?    a. Glacial melt   b. Carbonation factory   c. Underground spring   d. Swiss alpine stream at a maximum of 20 degrees Celsius
		8. The name “sparkling water” can only be applied to a bottled water that is    a. fresh.   b. shiny.   c. crystal clear.   d. carbonated.
		9. Advertisers use terms such as alpine, crystal clear, fresh, and glacial as ploys to get consumers to buy their bottled waters.    a. True   b. False
		10. If you were a homeowner concerned about water safety, what investment in your home water supply system might you want to check out?    a. disease-causing agents   b. dregs left to sit during day   c. municipal alternatives   d. reverse-osmosis system