Figure 6.5
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On the accompanying graph, what does the horizontal line at 2.1 births per women represent? What does the section of the graph marked "A" represent? What does the section of the graph marked "B" represent?
Fill in the blank(s) with the appropriate word(s).
The horizontal line indicates replacement-level fertility. Section "A" represents the baby-boom generation when the average total fertility rate (TFR) was high—3.7. Section "B" shows the TFR decreasing to, or near, replacement level fertility since 1972.
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Attracting talented individuals is important for a city because these individuals are
A) those who make the city famous. B) responsible for promoting economic innovation. C) those who pay taxes. D) those who run for political office. E) responsible for the high-tech jobs created.
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A. geosphere B. atmosphere C. biosphere D. solid Earth E. hydrosphere
The mantle represents 80% of Earth's volume
Indicate whether the statement is true or false