What is the Younger Dryas?
A. A gradual warming from 20,000 to 15,000 years ago
B. A warming event that occurred about 55 million years ago
C. An abrupt cold snap that began about 15,000 years ago
D. Another name for the Little Ice Age
Answer: C
You might also like to view...
What can be caused by ENSO events in the eastern Pacific?
a. Productivity increases due to high nutrient upwelling. b. Water temperatures decrease. c. Drought conditions occur. d. Water levels decrease. e. Upwelled water is nutrient-depleted, causing loss of productivity.
A measure of earthquake size that corresponds to the energy released during the earthquake is called the
A) focus. B) epicenter. C) intensity. D) magnitude.
In which portion of a nephron are glucose and amino acids reabsorbed?
A) the distal tubule B) Henle's loop C) the glomerulus D) the proximal tubule
When El Niño occurs every three to five years, a mass of warm Pacific water that is usually pushed westward by trade winds
A. Surges back eastward toward South America B. Becomes much warmer than usual, strengthening trade winds C. Surges northward toward Japan D. Cools dramatically E. Sinks and therefore cools substantially