After the Sauk Sea had regressed, the exposed surface of the North American continent was subjected to extensive glaciation
Indicate whether the statement is true or false
False
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How can a reverse fault in some special cases also be extensional?
What will be an ideal response?
How would salinity of the oceans vary if the oceans were twice as deep as present and held approximately twice as much water?
A. Salinity would be the same as present. B. Salinity would be less than present. C. Salinity would be greater than present.
The annual variation in atmospheric carbon dioxide is caused primarily by seasonal photosynthesis on land in the Southern Hemisphere.
Answer the following statement true (T) or false (F)
Why is the SOFAR layer efficient for sound travel?
a. Refraction causes the sound energy to remain within the layer. b. The density of the SOFAR layer traps the sound energy. c. Sound energy bends away from layers of lower sound velocity. d. Temperatures and salinity conditions are homogeneous. e. Sound travels rapidly in this layer.