In the above HR diagram sketch, which star is a red giant?
A. A
B. B
C. C
D. D
E. E
Answer: D
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What is the MOST important shortcoming of trade theories?
A) They generally ignore scale economies and transportation costs. B) They assume homogeneous products and perfect competition. C) They fail to incorporate the role of firms, especially multi-national corporations. D) They ignore governmental intervention. E) all of the above
Which of the following statements about the potential effects of global warming on human health is false?
A. Food and freshwater supplies are likely to be disrupted. B. People are likely to be displaced from coastal areas. C. Occurrence of insect-borne diseases is likely to decrease in temperate zones. D. Sanitation systems in coastal cities may be flooded. E. Respiratory diseases are likely to increase.
Geographer Derwent Whittlesey identified 11 main agricultural regions where divided by their importance to either developing or developed countries
Which agricultural region, that is important to the developing countries, covers the most area in the southern hemisphere? A) Grain B) Shifting cultivations C) Dairying D) Plantation E) Mediterranean
Excess sediment may result in which of the following channel patterns?
A) Straight, steep-walled channels B) Braided stream C) V-shaped valleys D) Meandering stream