Which pair of concepts or entities from South Africa and the United States is the best match?
A) apartheid - "Jim Crow" laws
B) homelands - blockbusting
C) South African Nationalist Party - U.S. Tea Party
D) Nelson Mandela - white flight
E) apartheid - U.S. Libertarian Party
Answer: A
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After the parcel of air has descended down the lee side of the mountain to sea level, what is the temperature of the parcel?
Assume that a parcel of air is forced to rise up and over a 4000-meter-high mountain (as shown). The initial temperature of the parcel at sea level is 30°C, and the lifting condensation level (LCL) of the parcel is 2000 meters. The DAR is 10°C/1000 m and the SAR is 6°C/1000 m. Assume that condensation begins at 100% relative humidity and that no evaporation takes place as the parcel descends.
_______ °C
The distribution of fossil organisms tells much about ancient climates.
Answer the following statement true (T) or false (F)
Which statement regarding cities is FALSE?
a. They must import resources from far away. b. They rely on large expanses of land for ecosystem services. c. People living in cities feel more connected to nature, particularly since HDTV. d. Cities tend to concentrate people, allowing for more efficient consumption of resources.
Based on the description of a dose-response curve given in the text, you would expect the curve for arsenic
A. would show that arsenic is beneficial to humans when consumed in low quantities, but toxic at high quantities. B. was a major factor in setting the new, lower drinking-water standard for dissolved arsenic of 10 ppb in public water supplies. C. would show that microorganisms can be very helpful in decontaminating a site with high arsenic levels. D. would show no benefit to low concentrations and great harm from high concentrations.