Question

Which items does man get from the oceans?

Answer 1

Man gets the following items from the ocean:

1. Minerals like iron, lead, cobalt, sodium, manganese, chromium, zinc, etc.
2. Natural gas and mineral oil. 
3. Precious items like pearls, corals.
4. Ornamental items like shells.
5. Medicinal plants, etc.
6. Food items such as prawns, clams, crabs, seer fish, mackerel, pomfret, Indian shark, Indian salmon, etc.