Which of the four Galilean moons is the most volcanically active object in the solar system, erupting sulfur-rich lava?
A. Ganymede
B. Europa
C. Io
D. Callisto
Answer: C
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What is the relationship between plucking and abrasion on a glacially scoured landscape?
A) Plucking occurs relatively suddenly when a glacier first encounters the landscape, and then if it remains in place for a long time, abrasion begins to happen later over a long period of time. B) Abrasion occurs relatively suddenly when a glacier first encounters the landscape, and then if it remains in place for a long time, plucking begins to happen later over a long period of time. C) Plucking occurs on the upflow side of a mound or hill that is scoured, while abrasion occurs on the downflow side. D) Abrasion occurs on the upflow side of a mound or hill that is scoured, while plucking occurs on the downflow side.
The two types of waves that are always or almost always deep water waves are: a. capillary waves and wind waves
b. seiche and tsunami. c. wind waves and seiche. d. tsunami and tides.
The area where an air mass originates is called a:
A) site region. B) large region. C) source region. D) local region.
The greenhouse effect makes Earth's average surface temperature warmer than it otherwise would be.
Answer the following statement true (T) or false (F)