Answer :
The true statement about aquatic biomes is that freshwater biomes are a vital source of drinking water.
The aquatic biome is simply divided into two main parts which are the freshwater and the marine regions. The Freshwater regions include rivers, lakes and hey are source of drinking water. The freshwater possesses a low concentration of salt while the marine regions have higher concentration of salt such as the ocean.
Option A is incorrect. Freshwater and marine biomes are not evenly distributed on Earth.
Option C is incorrect. This is because the marine biomes supply a greater portion of the oxygen on Earth.
Option D is incorrect. Marine biomes doesn't include streams, rivers, ponds, and lakes. These belongs to the freshwater region.
Therefore, the correct option is B.
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