Photographs of smoothed streambed rock with surfaces eroded by water-driven pebbles from the surface of ____
provide evidence of past water flow.
a. Europa
b. Saturn
c. Jupiter
d. Mars
e. Titan
d
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Subduction zones ____.?
a. dissipate heat from Earth's interior b. ?occur when plates collide instead of sink c. ?produce high mountain ranges d. ?generate Earth's largest earthquakes e. ?are rarely associated with volcanoes
The Earth was formed by the condensation of a cloud comprised of dust and gas
Indicate whether the statement is true or false
About 100 meters downstream of a raw sewage discharge outlet we would expect to find
A) cloudy water, low levels of oxygen, and few, if any, fish. B) cloudy water, high levels of oxygen, and abundant fish. C) clear water, low levels of oxygen, and few, if any, fish. D) clear water, high levels of oxygen, and abundant fish.
If the larger sphere represented S2-, the smaller sphere might represent which of the following?
A) K+ B) O2- C) Mg2+ D) Al3+