Problem 2
In your own words, explain Darwin's hypothesis for the formation of coral atolls.
Problem 3
Do an internet search for "Mataiva," a small atoll in Tuomotus, French Polynesia. Using the map on the Wikipedia site, determine the approximate number of atolls in this small region of the western Pacific. What conclusion can you draw about the abundance of atolls in the western Pacific?
Problem 5
Explain why the ocean floor generally gets deeper the farther one travels from the ridge crest.
Problem 7
Propose one or two ideas to explain why some continental rifts evolve into active plate boundaries while others do not.
Problem 10
Explain this Statement: The oceans are 4 billion years old, but the oldest ocean basin is only about 180 million years old.