From the time accurate charts became available in the late 1700s, observers noticed the remarkable coincidence of the shape of the Atlantic coasts of Africa and South America. What additional evidence strengthened the idea of continental drift with regards to geographic fit?
Marine scientists probed the submerged edges of the continents and found that the ocean bottom nearly always sloped gradually out to sea for some distance and then dropped steeply to the deep-ocean floor. They realized that these shelf-like continental edges were extensions of the continents themselves. Where they had measurements, researchers found that the fit between South America and Africa, impressive at the shoreline, was even better along the submerged edges of the continents.
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On the hypothetical Daisy World planet, black daisies would be favored over white daisies during
A) hot times because of white daisies' high albedo. B) hot times because of white daisies' low albedo. C) cold times because of black daisies' low albedo. D) cold times because of black daisies' high albedo.
Briefly describe the four main dune types and how they differ from each other? What will be an ideal response?
As the temperature increases, generally, the relative humidity:
A) is erratic. B) decreases. C) increases. D) is unaffected.
Convergence is indicated on upper level charts when: a. contour lines move toward each other
b. contour lines move apart from each other. c. contour lines are parallel. d. None of these choices.