The major goal of industrialized agriculture for any crop has been to steadily increase each crop's ____.
A. tolerance to weeds
B. tolerance of drought
C. yield
D. purity
E. aesthetic qualities
Answer: C
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When a galvanometer is calibrated to read current it is
A. a voltmeter. B. an ammeter. C. an ohm meter. D. none of the above
Which of the following is representative of an inversion?
A. the outgassing produced by volcanoes B. nitrous oxide C. condensation on a drinking glass D. the stratosphere
The rate of environmental changes on earth is
A. Slow, and therefore our ability to predict consequences is enhanced B. Similar to those seen in the geologic past C. Happening fast and consequences are uncertain D. Unknown
Compared to forests that are managed using sustainable forest management, commercial forests managed for maximum sustainable yield of commercially valuable species will
A) support more biological diversity. B) be more resistant to pests. C) produce a greater variety of wood. D) have greater erosion problems.