What are the parts to the ocean system?

Some parts to the ocean systems are

1.) Saltmarsh

2.) Mangroves

3.) Mudflats

4.) Lagoons,

5.) Coral Reefs,

6.) Barrier Islands,

7.) Estuaries,

8.) The Ocean Floor,

9.) The Deep Sea

Hope this helped!

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2b2t

explanation:

2b2t

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.