It takes ________ energy to produce aluminum from ore than to obtain it from recycled sources
A) 7 times more
B) roughly the same amount of
C) 20 times less
D) 7 times less
E) 20 times more
Answer: E
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When you push a brick with twice as much force, the acceleration of the brick
A. increases. B. is zero. C. decreases. D. remains the same.
The global spread of Western representations and norms of beauty through television and the Web has
A) led to a culture of dissatisfaction with people's own bodies. B) led to increased health around the world. C) led to a renewed celebration of diversity in people's shapes, sizes and colors. D) helped people around the world return to their traditional and core values. E) increased job opportunities for the marginalized.
Which of the following best matches the description?An unwanted plant.
A. micronutrient B. pheromone C. chlorinated hydrocarbon D. persistent pesticide E. rodenticide F. macronutrient G. biocide H. auxin I. herbicide J. micronutrients K. weed L. organophosphate M. macronutrients N. soft pesticide O. biomagnification P. fungicide Q. hard pesticide
What distinguishes a mineral reserve from a mineral resource?
A. Politics B. Economic feasibility C. Existing technology D. Location