We can strengthen publicity and raise people's awareness of environmental protection (correct answer)

Starting from the small things around us, protecting the marine ecological environment (correct answer)

It's none of your business. Don't ask.

The ocean is too big to do anything.

Answer analysis: In the face of the positive actions of human beings to protect the ocean, we can strengthen publicity, raise people's awareness of environmental protection, and start from small things around us to protect the marine ecological environment.