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

Environmental & Atmospheric Sciences

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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.

Environmental & Atmospheric Sciences

The greenhouse effect makes Earth's average surface temperature warmer than it otherwise would be.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

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.

Environmental & Atmospheric Sciences

The area where an air mass originates is called a:

A) site region. B) large region. C) source region. D) local region.

Environmental & Atmospheric Sciences