Direct laboratory experimentation is often not possible in geological studies for all of the following reasons except that
A) the number of variables is typically large.
B) the rates of many Earth processes are very slow.
C) the experimenter must outlive the experiment.
D) Earth conditions can be easily controlled and duplicated.
Answer: D
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The inside of a car or greenhouse would not heat up as much in the presence of sunshine if
A) air was circulated within the car or within the greenhouse. B) infrared radiation passed through glass as easily as sunlight. C) infrared radiation could not pass through glass as easily as sunlight. D) sunlight could pass through glass more easily than through air.
In the 1930s, which country experienced desertification known as the "Dust Bowl"?
A) China B) Argentina C) Turkey D) United States E) Spain
Most rainforest areas are not covered by true jungle, but by ____ vegetation
a. wetland b. selva c. savanna d. steppe e. xerophytic
Which of the following is true when comparing the hydrolysis of amides in acidic solution with the hydrolysis of amides in basic solution?
A) The reaction is reversible in either an acidic or a basic solution. B) The reaction is irreversible in both acid and basic solutions. C) The reaction is reversible when carried out in acidic solution, but is irreversible when carried out in basic solution. D) The reaction is reversible when carried out in basic solution, but is irreversible when carried out in acidic solution.