In 1974, Dr. Rowland and Dr. Molina made what observation regarding ozone (O3)?
A) Ground-level O3 irritates human eyes and respiratory systems.
B) Anthropogenic O3 releases were a major culprit in global warming.
C) The photochemical interactions of chlorofluorocarbons and O3.
D) Automobile exhaust and sunlight were producing photochemical smog.
C
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A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 40 m/s in 0.05 s. If the mass of the paper is 0.01 kg, the force of impact on the paper is about
A) 0.08 N. B) 0.8 N. C) 8.0 N. D) 80 N.
Coral bleaching occurs due to the expulsion of the symbotic algae from the coral
Indicate whether the statement is true or false
Lake-effect snow is primarily a problem ____ of large lakes
a. ?around the entire border b. ?in the center c. ?to the north d. ?to the south e. ?downwind
The island of ______ is viewed as a power projection hub that can be used as a forward base that is five full days sailing time closer to Asia than Hawaii
a. Guam b. Samoa c. Fiji d. Tuvalu e. Nauru