Why is it important to protect freshwater habitats?

Ocean habitats are where marine life live. Ocean habitats are endangered by human pollution.

There are 3 different zones in the ocean where marine life live.  The first zone is the sunlit.  The sunlit zone is at the top of the sea, where most marine life live.  

Next is the twilight zone.  The twilight zone is under the sunlit zone so there isn't much sun.

Finally it is the midnight zone.  It is very dark and cold there as it is the bottom of the ocean.

By Lola.