Get ready!
Before you listen to the passage, talk about these questions.
1 How is nitrogen added to soil?
2 Why must farmers monitor nitrogen levels in soil?
Listen to the textbook passage. Then, mark the following statements as true (T) or false (F).
1 _ Plants cannot survive without nitrogen.
2 _ During fixation, decomposers turn ammonia into nitrogen.
3 _ Nitrous oxide can cause algae build up in water supplies.
Fill out the farmer's schedule
