I think its the left one (sorry if im wrong)
Answer:
The difference is in the location. If the rain forest is close to the equator, it is considered tropical. If the rain forest is farther away from the equator (between the Arctic Circle and the Tropic of Cancer or the Antarctic Circle and the Tropic of Capricorn) then the forest is considered to temperate.
Explanation:
Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean water.