1.   What is kelp used for?

component of toothpaste, ice cream, shaving cream, fertilizer

2.  What are examples of sediment resources from the ocean?

Gravel, diamonds, manganese nodules


3.  Which two energy resources are extracted from marine sediments?

petroleum and natural gas

4.  What technique has improved the extraction of oil and natural gas?

horizontal drilling

5.  What medicinal resources are taken from the oceans?

anti-cancer agents produced by biological organisms

6.  What is a problem with taking such resources from the oceans?

It generally requires taking enormous numbers of particular organisms to extract a sufficient quantity of such chemicals

7.  What is the most abundant biological resrource in the oceans?

Fish

8.  What is the problem when fisheries start ccatching smaller and smaller fish of a particular species?

Fish do not develop to a point so that they are mature enough to reproduce.

9.  What are clues for overfishing?

Smaller fish and smaller number of fish

10.  What is a marine sanctuary?

Designated areas where human activity is reduced or restricted so as to allow the natural ecosystem to thrive.