Are the following statements correct or incorrect?

a) The Baltic Sea is an ocean. correct incorrect
b) The water of the Baltic Sea contains no salt. correct incorrect
c) The water of the Baltic Sea is low in salt. correct incorrect
d) Parts of the Baltic Sea include the North Sea and the Gulf of Finland. correct incorrect
e) Parts of the Baltic Sea include the Gulf of Bothnia and the Gulf of Finland. correct incorrect
f) The Baltic Sea is a relatively young sea. correct incorrect
g) The Baltic Sea is home to many fish species that can also be found in lakes. correct incorrect
h) The catchment area of the Baltic Sea comprises the regions from which water flows into the Baltic. correct incorrect