They ensure they leave the system and they also ensure that people get the nutrients they need.
Answer:
2ml
Explanation:
you can see that the water line is directly on the 2 so its 2 ml at the top it does show the that the water dropper tool is in ml unit
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.