What has occurred when a solid forms out of the mixing of two liquids in a chemical reaction?

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Why are common names a problem for scientist?