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Do-It-Yourself Summary
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Read each sentence and identify the word/phrase that you believe correctly completes the statement. Then, click on the arrow to see if your answer is correct.


1. The oceans may be referred to as , because until the age of European discoveries they tended to keep many peoples isolated from each other.


2. We now call the oceans "avenues" because they help link the world mostly through .


3. The oceans have molded many cultures, particularly those that developed in coastal regions. They are known as cultures.


4. Modern societies are directly influenced not only by the recreational opportunities the ocean offers millions of people, but also by the significance of as a major industry in both developing and developed countries.


5. The provided some important agreements related to the use of the oceans by all nations.







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