Upwellings provide an important mixing mechanism for surface and deep waters that:
a) bring high levels of oxygen to the seafloor
b) brings cold, deep, highly saline nutrient-rich water to the surface
c) brings cold, shallow, nutrient-poor water to the deep
d) all of the above
B
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What might be present to cause a reddish color in a soil horizon?
A) organic materials B) bedrock C) aluminum and iron oxides D) clay minerals
Magma that forms batholiths forms in the mantle and must migrate upward. However, the sedimentary and metamorphic rocks that surround these batholiths are only moderately deformed
How does a rising magma body make its way through several kilometers of solid rock to be emplaced as a batholith? (Start your journey in the mantle.) What will be an ideal response?
Weathering that softens and rounds the sharp edges and corners of jointed rock is known as
A) hydrolysis. B) hydration. C) exfoliation. D) spheroidal weathering.
The high surface temperatures of ________ have been attributed to the greenhouse effect
A) Venus B) Mercury C) Uranus D) Mars