Generally, the concentration of nuclei is less over the oceans than over land
a. True
b. False
ANSWER: True
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Oxygen atoms are used to make water molecules. Does this mean that oxygen, O2, and water, H2O, have similar properties?
A) Yes, and this explains how fish are able to breathe water. B) Yes, but that their properties are similar is only a coincidence. C) No, but their similar properties are only a coincidence. D) No, compounds are uniquely different from the elements from which they're made.
The largest pool of carbon in the carbon cycle is ________
A) the hydrosphere B) sedimentary rock C) the ocean D) the atmosphere E) in plants and animals
A sandstone is found to overlie a shale. The shale contains a volcanic ash layer that has been radiometrically dated to 84 million years ago. Both the shale and the sandstone are cut by a pluton of gabbro that has been dated to 60 million years old
How old is the sandstone layer? A) between 84 and 60 million years old B) older than 84 millions years old C) younger than 60 million years old D) more information is needed to constrain the age
Just beneath the surface of Yellowstone National Park is a large ________
A) karst cavern B) aquifer C) volcano D) magma chamber E) area of tower karst