Why The Sea Is So Important.

1. sea entertainment

1.1. sea vehicles

1.2. boat rides

1.3. swimming

2. sea animals

2.1. safe habitat for fish

2.2. fishing

2.2.1. food

3. science

3.1. exploration

3.2. classification

4. Transportation

4.1. cargo

4.2. medicine

4.3. supplies

5. water

5.1. fresh water to drink

5.2. filtering water

5.3. swimming

6. careers

6.1. scuba divers

6.2. beach workers

6.3. life gaurds

6.4. submarine crew

6.5. sailors

6.6. fisher

6.7. marine biologist

6.8. Aquaculture worker

6.9. Aquarist

6.10. Naval architect.