What does a total fertility rate of 2.1 indicate?
A) that a population is at its replacement rate
B) that a population has reached its peak
C) that a population is growing quickly
D) that a population is growing slowly
E) A TFR that is less than 2.1 has no particular significance.
A) that a population is at its replacement rate
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DDT
A. became highly concentrated in carnivorous fish and birds. B. affected insects but had little effect on humans. C. was a persistent pesticide. D. All of the statements are correct. E. None of the statements are correct.
A mineral is light colored, transparent, has a hardness of seven, and fractures rather than cleaves. What minerals is it?
A. biotite B. muscovite C. garnet D. quartz E. feldspar
________ form from the coalescence of multiple alluvial fans
A) Mesas B) Inselbergs C) Bajadas D) Deltas
Subsidies and tax breaks to assist companies with using resources to run their businesses are ____.
A. helpful to the environment B. not helpful to the economy C. not actually helpful to these companies D. not helpful to the environment E. not helpful to individuals