If the sun's energy could be measured in units like money, which of the following organisms would be the most expensive to maintain?
A) A mushroom
B) A fox
C) A squirrel
D) A sunflower
B
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Would you expect polypropylene to be denser or less dense than low-density polyethylene? Why?
A. Polypropylene should be more dense given that the polyethylene is already known to be of low density. B. Polypropylene should be less dense because its molecules are not able to pack together as tightly. C. Polypropylene should be more dense because it has a greater molecular mass. D. Polypropylene should be more dense because its molecules are able to pack more closely together.
The viewpoint that people, not environments, are the dynamic forces of cultural development is called:
A) environmental determinism B) possibilism C) syncretism D) civilization
What mineral is shown in this photograph?
A. hematite B. quartz C. calcite D. feldspar E. magnetite
What parts of the Earth's crust float on top of the mantle?
A) stratosphere B) tectonic plates C) lithosphere D) ozone layer E) oceans