An infamous cold spell often linked to volcanic activity occurred during the year ____, which has come to be known as “the year without a summer.”
a. ?1492
b. ?1550
c. ?1685
d. ?1816
e. ?1964
ANSWER: d
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Indicate whether the statement is true or false
Cities like Rio de Janeiro, Accra, Buenos Aires, Kolkata and other colonial cities emerged and grew due to
A) trade. B) industrialization. C) tourism. D) war. E) the rank-size rule.
Although hydroelectric dams generate electricity without producing greenhouse gases, they ________
A) are short-lived structures that have to be rebuilt about every 20 years B) alter water control in ways that make it more difficult to irrigate crops C) contribute only about 5% of the electrical power throughout the world D) eliminate farmland, wildlife habitats, and sometimes even villages in regions that are flooded E) still produce more greenhouse gases per unit of electricity produced than coal power plants
A mass burn is the incineration of
A. Hazardous substances B. Unsorted garbage C. Sorted garbage D. Agricultural waste E. Large household pieces like furniture