Answer:
Independent: electronics in room
Dependent: hours of sleep
Control: school nights, night routine, lighting of room, the time the person decides to go to bed
Confounding: the person(?? not entirely sure on this one)
They are apart of the brainstem
Answer:
A. Unintended pregnancy is a problem in the US.
B. Most teenagers are influenced by what their parents might think before having sex.
D. The risk of pregnancy is a primary influence on a teen’s decision to have sex.
Answer:
D) airway obstruction
Explanation:
Referring to the "Types of Disasters" page published by the Red Cross online (www.redcross.org/get-help/how-to-prepare-for-emergencies/types-of-emergencies.html), there are guides for disasters involving flooding, hurricanes, and earthquakes. However, there are no guides for an airway obstruction.