Exfoliation occurs because
A) water freezes in joints and expands.
B) evaporated water leaves behind previously dissolved mineral to form crystals, which accumulate and grow over time, exerting pressure on the rock.
C) water combines with minerals and increases their size, thereby causing surrounding minerals to expand.
D) overlying rock is removed, thereby allowing the underlying rock mass to expand and fracture.
D
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North America was colonized by several different countries. Which is an INCORRECT match of colonial power and the area they controlled for at least a short time?
A) Britain: New England B) France: Quebec and the St. Lawrence River Valley C) Russia: Alaska D) Spanish: Texas E) all of the above are correct matches
Which of the following includes only states and provinces located in the Atlantic Periphery?
A) Quebec, New Brunswick, Maine B) Nova Scotia, Vermont, Connecticut C) Maine, Prince Edward Island, Nova Scotia D) Massachusetts, Newfoundland and Labrador, Quebec
Which of the following statements about ozone is FALSE?
A) Ozone in the lower atmosphere protects human health. B) Stratospheric ozone absorbs harmful radiation. C) Tropospheric ozone is a component of photochemical smog. D) Ozone in the stratosphere protects human health.
What kind of geologic structure is present?
A) Syncline B) Basin C) Anticline D) Dome