The level curves in the land areas of the accompanying figure indicate ice elevations above sea level (in meters) during the last major ice age (approximately 18,000 years ago). The level curves in the sea areas indicate sea surface temperature. For instance, the ice was 1,000 meters thick above New York City, and the sea temperature near the Hawaiian Islands was about 24 ºC. Where on earth was the ice pack the thickest? What ice-bound land area was adjacent to the warmest sea?

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PERX HREFFE AXERASEDRE