Unlike fluorescent light, why does sunlight produce sharper shadows?

Are there mountains and volcanoes under the sea?

In which ocean is the saltiest sea?

Are thee rivers in the sea?

Are currents dangerous?

Tell about underwater explorations?

Are there oceans highways?

Besides food, what useful does the sea supply?

Are thee farms under the sea?

In what ways are seaweed utilized?

Are there snakes in the ocean?

Are there forests in the sea?

Are there really sea monsters?

What                    Why                    When                    Where                   Which                   Who

             How                  Does                  Do                  Is                 Can                 General