During the last Ice Age, approximately 30% of Earth's land surface was covered by glaciers. Which of the following areas experienced the most glaciation?
A) Siberia
B) Australia
C) North America
D) Europe
Answer: C
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A) almost 90% B) about 60% C) approximately 30% D) about 53% E) a little less than 70%
The dew point is usually ________ on a humid day compared to a dry day.
A. the same B. higher C. more changeable D. lower
Which of these subjects is most important for understanding the root cause of earthquakes?
A) Chemistry B) Physics C) Biology D) Math
Which of the following best describes Shiprock, a famous volcanic feature in New Mexico?
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