________ occurs when weathering concentrates minor amounts of metals scattered through unweathered rock into economically valuable concentrations
A) Passive collection
B) Secondary enrichment
C) Concentration
D) Hydraulic fracturing
Answer: B
Environmental & Atmospheric Sciences
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At which site along this stream would a point bar form?
A) A
B) B
C) C
D) D
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What body in our solar system is most like Mercury?
What will be an ideal response?
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If material is to move down slope, it must overcome the force of
A) inertial resistance of the material only. B) the cohesion of particles to each other only. C) friction only. D) both friction and inertial resistance. E) friction, cohesion of particles, and inertial resistance.
Environmental & Atmospheric Sciences
________ is a balance or equilibrium of adjacent blocks of brittle crust floating on the upper mantle.
A. Density adjustment B. Thermohaline flow C. Isostasy D. Inertial adjustment E. Gravity adjustment
Environmental & Atmospheric Sciences