Some examples:
Plankton produces half the Earths oxygen
Fish feed many sea creatures (etc dolphins), birds and even land mamals such as humans and polar bears.
Because you are part of the biosphere of Earth and without the life in the sea you would die.
mostly all plankton and all preditors
The sea is important because their is life in the sea. Scientist can study marine life to understand history and evolution.
Scandium is not important for life.
The Dead Sea is far more salty than the ocean.
The war at sea was so important because you could block off enemy suplies from getting to the armies.
NASA is important to life. It has all the necessary data for sustaining life.
The most important thing that sea life has to help it breath is its gills
they give food to sea life
because they can have babies
The sea is important because their is life in the sea. Scientist can study marine life to understand history and evolution.
because it is at the bottom of the food chain
Yes, very much so.
It was used highly for trades and there is no life in the Dead Sea because of the high water salt content.
Artificial reefs will be covered by corals and other sea life and will become 'natural' eventually. Even a shipwreck will become covered in sea life and become an important sea life habitat.
The sea east of Greenland is the Greenland Sea, which separates Greenland from Svalbard. It is known for its sea ice cover and is an important area for marine life, including various whale species and seabirds.
No dead sea is not important
It is important for aquatic life. Sea water does not heat too much with the sun heating it all day long. Thus, aquatic animals enjoy of a constant temperature in the sea.
It is important to conserve all seas. There is a lot of rich marine life in the Caribbean Sea. There are also a lot of islands there with people living on them, many of whom rely on the sea in one way or another for their life and livelihoods, such as fishing or tourism. Any damage to the sea could have implications for them.