Which of the following statements is true of aquatic biomes?

A: Freshwater and marine biomes are evenly distributed on Earth.

B: Freshwater biomes are a vital source of drinking water.

C: Freshwater biomes supply a greater portion of Earth's oxygen than marine biomes.

D: Marine biomes include streams, rivers, ponds, and lakes.

B: Freshwater biomes are a vital source of drinking water.

Explanation:

It's not A because oceans are part of marine biomes, and oceans contain 97% of the Earth's water and covers 71% of the Earth's surface.

It's not C because marine biomes supplies more oxygen than freshwater biomes. Marine algae supply much of the world's oxygen supply, and they take in a huge amount of atmospheric carbon dioxide.

It's not D because freshwater biomes include streams, rivers, ponds, and lakes. Aquatic biomes include oceans, coral reefs, and estuaries.

It's B because freshwater biomes are very important to our survival because they supply people with more than half of their drinking water.