A supercontinent that existed in the Paleozoic:a
Kimberella d. craton
b. ancestral Rockies e. Ornithischia
c. Pangaea
C
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How was the style of plate tectonics different in the Archean than it is today? When did the present
style of plate tectonics begin? What will be an ideal response?
If you examine the changes in day-by-day electrical demand in the United States, the pronounced daily drop in electrical consumption is most closely associated with
A) people going to work. B) people sleeping. C) home heating and cooling systems. D) daytime activities that consume little energy.
Which of the following is normally true of a hot desert?
A) Potential evapotranspiration exceeds actual evapotranspiration. B) Actual evapotranspiration exceeds potential evapotranspiration. C) Potential evapotranspiration equals actual evapotranspiration. D) It is impossible to say what the normal relationship between potential and actual evapotranspiration would be in a desert.
Small bedrock protrusions at the base of a glacier are often overrun by a process known as __________, which occurs because __________.
A) ablation; ice melts when it is sufficiently compressed B) ablation; ice deforms when it is subjected to pressur C) regelation; ice melts when it is sufficiently compressed D) regelation; ice deforms when it is subjected to pressure E) ice plucking; ice deforms when it is sufficiently compressed