Practice problem
Which two characteristics are used to separate the ocean into different ecosystems?
Zones are based on the depth of the water and pH of the water.
Zones are based on the distance from land and temperature of the water.
Zones are based on the oxygen content of the water and the turbidity of the water.
Zones are based on the distance from land and depth of the water.
Type a concept, like “slope” or “photosynthesis”.