Question

The Older Dryas and Younger Dryas stages represented ______________________.

A. two cooling stages during warm-up from the last major glacial advance
B. two of the more abrupt warming stages during the last glaciation
C. one warming stage and one cooling stage during the last glaciation
D. periods of dry climate

Answer 1

The Older Dryas and Younger Dryas stages represented two of the more abrupt warming stages during the last glaciation, with rapid warming followed by cooling.

correct answer is B

Step-by-step explanation:

The Older Dryas and Younger Dryas stages represented two of the more abrupt warming stages during the last glaciation.

These stages were marked by rapid warming followed by cooling.

The Older Dryas stage occurred around 14,000 years ago, while the Younger Dryas stage occurred around 12,900 years ago.

During these stages, the temperature increased quickly, causing the ice sheets to melt, but then abruptly cooled again, leading to the re-advancement of the ice sheets.

correct answer is B