Answer the following question: Fact 1: Freshwater biomes have water that contains little or no salt. Fact 2: Biomes are global ecosystems. Given the two facts above, what has freshwater that contains little or no salt?

Available options: (1). our planet; (2). sweat; (3). swamp vegetation; (4). ocean; (5). NaCl; (6). aqueous solution; (7). solid, liquid, gas; (8). global ecosystems;
Answer:
(8).