Nitrogen is converted to forms that can be used by plants by lightning and by ____.
A) legumes
B) bacteria
C) algae
D) protozoa
E) round worms

Question

Quizplus · Accepted Answer

Nitrogen is converted into forms such as ammonia, nitrite, and nitrate through a process called nitrogen fixation. This process can be carried out by certain types of bacteria that convert nitrogen gas from the atmosphere into these usable forms. Legumes, algae, protozoa, and round worms do not have the ability to fix nitrogen, making option B the correct answer.

Nitrogen Is Converted to Forms That Can Be Used by Plants