In the United States, the worst drought--so far--was
A. the 1970s tragedy of over-withdrawal in aquifer system in southwestern regions
B. in the 1930s when dry years and poor soil conservation resulted in the dust bowl
C. in 1910, when the southwest received about 65% less rain than average
Answer: B. in the 1930s when dry years and poor soil conservation resulted in the dust bowl
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The most productive farming regions in the Slavic countries are in
A. Siberia B. The central part, north of Central Asia C. Western Russia, Ukraine, and Moldova D. In the North, near the border with Finland
The global human population
A) consumes fewer resources in a year than Earth can provide. B) has decreased its resource consumption in the last decade. C) would consume fewer total resources if everyone in the world consumed as many resources as the average American. D) needs 1.5 Earths to sustain its current rate of consumption.
The most interior division of planet Earth is the core, which is liquid at its center because of extreme pressures, but
solid toward Earth’s surface. a. True b. False
An organism's biotic potential is the maximum number of offspring that ________.
A. survive to adulthood B. It produces at one time C. Its habitat can support D. It actually produces over its lifetime