Kait started smoking in 7th grade, a year ago. Kait knew it was healthier not to smoke. But she thought it made her look and feel kind of cool. Researchers have found that once adolescents try smoking, drinking, drug use, or early sexual activity, their previous estimates of the risks
a. become much more accurate.
b. decrease.
c. become irrelevant.
d. increase.
Question 2
Researchers who study scientific thinking among trained and untrained adolescents and adults find that one of the most difficult aspects of science for people understand is that
a. scientific knowledge is constructed by humans by collecting data and revising theories rather than discovering a hidden truth.
b. hypotheses need to be tested by collecting evidence.
c. one needs to cite evidence in support of ones theory.
d. in any particular scientific question, some variables are causal and some are non-causal.
Chest CT scan. The stringy, cobweblike area indicates lung damage from smoking that has resulted in
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