The u. s. integrated ocean observing system (ioos) is best described as a. a public and private partnership to increase understanding of the oceans b. a program to improve ocean safety c. a partnership aimed at protecting the environment d. all of the above  

The correct answer is D i.e All of the above.

The United States Integrated Ocean Observing System (IOOS)  is a program or organisation which increases understanding and safety of the large water bodies like oceans, coasts and the Great Lakes. It is a program to improve ocean safety, protect the environment and increase economic benefits from oceans etc. So it is a network of people and technology which coordinately works together to compile and distribute data of these water bodies.

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