In general, fertility rates ________
A) increase as per capita income increases B) are unrelated to per capita income
C) decrease as per capita income increases D) decrease as per capita income decreases
C
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Suppose a warm parcel of air at sea level is compared to a similar but very cold parcel of air at 5.5 km. Which of the following statements accurately compares the two parcels of air?
A. The parcel at sea level has higher pressure and higher density than the parcel at 5.5 km. B. The parcel at sea level has lower pressure and lower density than the parcel at 5.5 km. C. The parcel at sea level has lower pressure and higher density than the parcel at 5.5 km. D. The parcel at sea level has higher pressure and lower density than the parcel at 5.5 km.
If you were a land planner, what questions could you answer by using the composite overlay of data layers in Figure 30.1?
What will be an ideal response?
In 2010, geologists working for the U.S. military operations in Afghanistan discovered a literal treasure trove of mineral deposits with a preliminary estimated value at nearly U.S. $1 trillion. So far, no proposals have been made for extracting these resources, but already parallels have been drawn to the many dimensions of human rights issues that have plagued coltan production in the Congo, oil drilling in Nigeria, and the "blood diamonds" of Sierra Leone. The U.S. Agency for International Development (USAID) manages a program called the Mining Investment and Development for Afghanistan Sustainability (MIDAS) project, whose goal is to assist the Afghan government in responsibly developing the nation's mining industry.
For the Afghan people, which of the following would be the most useful benefit from mining profits?
Coral polyps secrete solid masses of rocklike material. The primary chemical composition of this material is
A. calcium fluorite. B. calcium silicate. C. calcium carbonate. D. carbon dioxide. E. quartzite.