What is the eventual fate of erosional beaches?
a. The sea cliffs and sea caves overrun the coastline.
b. Marine erosion becomes less of a factor with the age of the beach.
c. They become a depositional beach.
d. They become submerged.
e. Wave energy eventually erodes the underlying rock
c
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A caller who wondered why no one was discussing nuclear power berated panelists discussing the problems of global warming on a radio show. How would you react to this caller? Make sure you provide at least three arguments that support your position.
What will be an ideal response?
Both the intracontinental rift and back-arc basin model are based on volcanism associated with
mantle plumes. Indicate whether the statement is true or false.
Fossil fuels were formed from ________
A) pockets of hydrogen sulfide gas that were trapped beneath bogs and wetlands B) sodium and calcium incorporated into ancient fossils, seashells, and limestone C) plants and algae trapped underground millions of years ago D) nitrogen trapped in rocks during extensive volcanic activity
When sand lithifies, the resulting rock is commonly called ________
A) conglomerate B) breccia C) shale D) sandstone