Which isotope of oxygen is most likely to be a b emitter?
A) 15O
B) 16O
C) 17O
D) 19O
D
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Which of the following has NOT been mentioned as a potential result of Brexit?
A) the increased likelihood of Scottish independence from England B) stronger economic ties between England and the European Union C) the increased likelihood of Northern Ireland opting to join the Republic of Ireland in order to remain part of the EU D) the emboldening of far-right wing (and anti-immigrant) political parties across Europe E) the breakup of the United Kingdom
Natural selection may favor traits that help organisms
A. successfully raise offspring. B. survive. C. acquire mates. D. all of the above
List some of the ways in which you can predict the future movement of surface mid-latitude storms
Which of the following does NOT demonstrate the use of renewable resources?
A. using wind to power windmills to produce electricity B. using corn or switchgrass to produce fuel ethanol to power our vehicles C. using underground coal deposits to produce heat and electricity D. using water from a lake to turn turbines in a hydroelectric dam to produce electricity