Thick sheets of ice advanced over North America as far south as New York as recently as ____.
A)1816 ("the year without a summer")
B)1550
C)18,000 to 22,000 years ago
D)1,000 to 2,000 years ago
E)2 million years ago

Question

Thick sheets of ice advanced over North America as far south as New York as recently as ____.
A)1816 ("the year without a summer")
B)1550
C)​18,000 to 22,000 years ago
D)​1,000 to 2,000 years ago
E)​2 million years ago

Quizplus · Accepted Answer

The last glacial maximum, when thick ice sheets advanced over North America reaching as far south as New York, occurred approximately 18,000 to 22,000 years ago.

Thick Sheets of Ice Advanced Over North America as Far