Advances in agriculture ________
A) do not rely on ecosystem services
B) have resulted in a smaller global population
C) are always sustainable, since they are based on natural ecosystems
D) have often resulted in alteration and destruction of natural systems
E) did not increase the amount of food per person from a global perspective
D
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Most tornadoes are fairly weak, ranking low on the EF-scale
a. True b. False Indicate whether the statement is true or false
How does the relationship between temperature and density help to explain why the drop in pressure between 2 km and 4 km was greater at Fairbanks than at Key West?
What would be an ideal response?
The likely reason that the Himalaya is much higher than the adjoining Tibetan Plateau is:
A. Heavy precipitation results in rapid erosion in the Himalaya. B. The Tibetan Plateau is being subducted. C. The crust of the Himalaya is less dense than that of the Tibetan Plateau. D. The mantle beneath the Himalaya is hotter than that beneath the Tibetan Plateau.
Which of the following best describes the temperature of materials typically erupted from volcanoes?
A) Extremely hot B) Warm to slightly hot C) Cool to cold