The Cornucopian view held by many economists suggests that resource depletion due to greater numbers of people ________
A) will cause a population crash
B) poses no problem because humans are too intelligent to allow it to become one
C) will lead to natural selection of the most fit individuals
D) poses no problem if new resources can be found to replace depleted ones
E) poses no problem because disease will limit population size
Answer: D
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Which shape is likely to need more material for a critical mass, a cube or a sphere? Why?
A. a sphere because it has the greater surface area to volume ratio B. a cube because it has the greater surface area to volume ratio C. a sphere because it has the smaller surface area to volume ratio D. a cube because it has the smaller surface area to volume ratio
The curved path of a projectile is a combination of
A. up and down motion. B. constant horizontal motion and accelerated downward motion. C. forces and inertias. D. none of the above
When an occlusion occurs,
A) the warm front overtakes the cold front and the colder air is lifted from the surface. B) the warm front overtakes the cold front and the warmer air is lifted from the surface. C) the cold front overtakes the warm front and the colder air is lifted from the surface. D) the cold front overtakes the warm front and the warmer air is lifted from the surface.
What are the disadvantages of using biomass as a means to calculate primary productivity? What are some other means used to measure this productivity?