Edward Suess thought the similarity of fossil plants and animals in Gondwana was due to ____
A)the appearance and disappearance of connecting land bridges on the southern continents
B)the fact that Gondwana had always been one giant supercontinent
C)the extremely slow rate of evolution that occurred during the late Paleozoic
D)geographical barriers between Gondwana and Pangaea
E)interbreeding among most related species
A
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Which of the following is an example of natural goods from an ecosystem?
A) Pollination B) Ocean fish netted for food C) Control of pest populations D) Carbon sequestration
Match the index mineral with the correct metamorphic grade(s). For these purposes, please remember that for a mineral to be part of two metamorphic grades, it should make up at least one-third of both grades
A) Low grade B) Low to medium grade C) Medium to high D) Medium grade E) High grade 1) Chlorite 2) Staurolite 3) Muscovite 4) Garnet 5) Sillimanite
Microbursts
A. are characterized by strong updrafts that can cause airplanes to crash. B. normally display a "starburst" (radial) damage pattern from rotating winds. C. are never accompanied by rain, and are only associated with dust storms. D. occur in the early stage of thunderstorms when latent heat release is maximized.
Flood basalt eruptions are fed by
A. lava tubes. B. long fissures/dikes. C. central vents/craters.