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Question
Water runoff is a major factor in soil erosion, what is a common land use practice on slopes to minimize soil erosion?A) planting trees
B) adding a rock mulch layer to slow water runoff
C) planting row crops with rows running downhill, to minimize channelization of flow
D) terracing slopes to stop downslope runoff and rill formation
Answer
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Related questions
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A) coal
B) ice
C) helium gas
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A) reserve
B) ore
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What does the tendency of micas to produce thin cleavage flakes suggest about its crystal structure?
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B) The structure is characterized by rings that form an interlocking network, forming planar sheets.
C) The structure is produced by flow in the igneous rock, aligning glass layers within the crystal structure.
D) The atoms are arranged in orderly arrangements that form strongly bonded sheets separated by weak bonds between the sheets.
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Use the Periodic table below to answer the following questions: When electrons are shared amongst all atoms, the resulting bond is a(n) ________ bond.
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Use the Periodic table below to answer the following questions: Element 20, Ca, has what chemical property?
A) It behaves as a metal ion, giving up two electrons to form a +2 ion.
B) It tends to form covalent bonds and an ion with a charge of +1.
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D) It tends to be inert, and thus is dispersed throughout the crust.
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A) deep-ocean trenches
B) oceanic ridges
C) seamounts
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A) along coastlines
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D) in areas that receive large amounts of rainfall
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A) viscosity
B) temperature
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A) subduction
B) sea floor spreading
C) back-arc contraction
D) continental collision
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B) Asthenosphere
C) Lower mantle
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A) hot spots on the sea floor, like Iceland
B) spreading ridges
C) convergent plate margins
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