Birds most likely evolved from dinosaurs.
a. true
b. false
a. true
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Why is 2,4,5-trifluorophenol much more acidic than phenol?
A. The fluorines destabilize the benzene ring and thus give the structure more acidic characteristics. B. False! 2,4,5-trifluorophenol is actually not more acidic than phenol. C. The fluorines have high electronegativities and help to stabilize the negative charges, which makes it even easier for the hydrogen to be lost. D. The fluorines adjacent to the OH group are large and shield the hydroxyl group from making the solution basic.
What term describes the fragmented geopolitical processes involved with small-scale independence movements and the phenomenon of mini-nationalism as it develops along ethnic fault lines?
A) feudalism B) gastarbeiter C) balkanization D) irredentism E) secularization
Because of the nature of the comprehensive environmental laws adopted during the late 1960s and early 1970s by the United States government, these laws are typically referred to as ____________________ .
A. positive regulations B. command and control regulations C. control and command regulations D. negative regulations
Placer mining involves washing metals, minerals, and the gemstones from streambeds with a water cannon.
Answer the following statement true (T) or false (F)