Which of these made the Bering land bridge possible?
A) rising seas
B) human migration
C) an ice age
D) a period of drought
Answer: C
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Seventy-five percent of the victims of the European Witch Hunt were __________.
A) men B) women C) in Italy D) in Spain
________ was a native of Genoa sailing in the employ of England near the end of the fifteenth century.
Fill in the blank(s) with the appropriate word(s).
Did Isaac Newton restrict his studies to mathematics and physics?
a) No, he believed in occult forces, which required alchemy and astrology to understand. b) Yes, he was a strict practitioner of the new empirical methods laid down by scholars like Galileo. Consider This: While Newton could describe magnetism and gravity, did he have all the evidence he needed to explain them? See 3.4: Science Established. c) No, he was primarily a scientist, but could not resist the occasional dabble in magic. Consider This: While Newton could describe magnetism and gravity, did he have all the evidence he needed to explain them? See 3.4: Science Established. d) Yes, but his exposure to mercury interfered with his adherence to scientific method. Consider This: While Newton could describe magnetism and gravity, did he have all the evidence he needed to explain them? See 3.4: Science Established.
Cyrus Hall McCormick played the leading role in perfecting the
A) scythe. B) iron plowshare. C) mechanical reaper. D) corn planter.