Why did Heezen and Tharp have to do "inspired guessing" when creating their maps of the ocean floor?
a) They were limited by the mapping technology of the time.
b) The data they used came from tracks of ships that overlapped each other.
c) Data could not be collected for parts of the ocean that were greater than 10,000 feet deep.
d) They were given only a small portion of the depth data by the Navy. The rest was classified.
e) There were gaps in the data that were used to make the map because the tracks of the ships collecting the data were widely spaced.
e) There were gaps in the data that were used to make the map because the tracks of the ships collecting the data were widely spaced.
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