Assume that the melting of a glacier is taking place at a constant rate of 50 meters per year, and that site A is 1.6 km farther from the ice edge than site B is. Based on this data, and the principle of "space for time substitution," we can assume that the conditions seen at site A in the year 2011 are the same as those that _______ seen at site B in _______.
A) were; 1979
B) were; 1995
C) will be; 2027
D) will be; 2043

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The Answer of Assume that the melting of a glacier is taking place at a constant rate of 50 meters per year, and that site A is 1.6 km farther from the ice edge than site B is. Based on this data, and the principle of "space for time substitution," we can assume that the conditions seen at site A in the year 2011 are the same as those that _______ seen at site B in _______.
A) were; 1979
B) were; 1995
C) will be; 2027
D) will be; 2043

Assume That the Melting of a Glacier Is Taking Place