Multiple Choice
Formaldehyde is a simple organic molecule with important industrial uses; however it is a known carcinogen (cancer-causing compound) . Researchers have long known that formaldehyde is present in cigarette smoke, but it was only recently in 2014 that researchers determined that formaldehyde is also present in e-cigarette vapor. For this and other reasons, the U.S. FDA is now overseeing production and distribution of e-cigarettes.
The data below are compiled from several studies examining the levels of formaldehyde in cigarette smoke and low- and high-voltage e-cigarette vapor (increasing the voltage of an e-cigarette allows for increased nicotine intake) . The data in bar A are from individuals consuming 20 cigarettes a day. The data in bar B are from individuals consuming 3 mL of e-cigarette fluid a day when the e-cigarette is set to low voltage (n.d. = not detectable) . The data in bar C are from individuals consuming 3 mL of e-cigarette fluid a day when the e-cigarette is set to high voltage.
-What can you conclude from these data?
A) Smoking cigarettes results in the highest daily intake of formaldehyde.
B) E-cigarettes cause cancer.
C) The researchers did not conduct any studies with low-voltage e-cigarettes.
D) High-voltage e-cigarettes yield the highest daily amount of formaldehyde.
Correct Answer:

Verified
Correct Answer:
Verified
Q30: Labored breathing, coughing, lung infections, and respiratory
Q31: Cigarette smoking can sometimes lead to development
Q32: Oxygen is mostly transported through the body
Q33: Physicians routinely give their patients pulmonary function
Q34: Consider an animal that exchanges gases through
Q36: Many amphibians (including many frogs, toads,
Q37: Cigarette smoking causes cancer due to the<br>A)
Q38: Some crocodiles and turtles have an exceptional
Q39: Animals that effectively use their body surface
Q40: If the hemoglobin molecules in your red