When the upper surface of the open ocean freezes, the feature produced is called
A) sea ice, composed mostly of fresh water.
B) sea ice, composed mostly of salty water.
C) ice calving, composed mostly of fresh water.
D) ice calving, composed mostly of salty water.
A) sea ice, composed mostly of fresh water.
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When a galvanometer is calibrated to read potential difference it is
A. a voltmeter. B. an ohm meter. C. an ammeter. D. none of the above
Which of the following has provided information associated with past temperature changes?
a. tiny bubbles of ancient air found in ice cores b. tree rings c. radioisotopes in rocks and fossils d. layers of soot trapped in ice cores e. all of these answers
The most abundant rock type deposited during the Kaskaskia sequence was ____
a. the Oriskany Sandstone b. carbonates c. coal d. igneous e. arkose
Desert bolsons would most likely have:
a. exterior drainage. b. plateaus. c. exotic streams. d. playas. e. karst topography.