Question

10. Which statement is true?

1.The nitrogen cycle starts with plants.

2.The nitrogen cycle has no beginning or end.

3.The nitrogen cycle ends with animals.

Answer 1

1 (?)

Step-by-step explanation:

How does the nitrogen cycle work? Step 1- Nitrogen Fixation- Special bacteria convert the nitrogen gas (N2 ) to ammonia (NH3) which the plants can use. Step 2- Nitrification- Nitrification is the process that converts the ammonia into nitrite ions which the plants can take in as nutrients.

So even when starting with the first question we know that nitrogen is present in soil BUT the cycle begins during Nitrogen Fixation which plants use.

we also know that the nitrogen cycle has a start-- given I just explained that-- and even though it's continuous there is a point where the cycle repeats and therefore starts again. Knowing it's continuous we also know that when nitrogen 'ends' the cycle simply starts again, and the nitrogen is released back into the air. ("Nitrogen gas [N2] diffuses into the soil from the atmosphere")

In conclusion: 1 is the most probable answer.