AP®︎ Environmental Science: Topic 1.5 Practice Test
Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 1.5 of AP Environmental Science – The Nitrogen Cycle.
Questions List
Topic 1.5
Question 1 Easy
This question tests the following: ERT-1.E.4
What percentage of the Earth's atmosphere is composed of nitrogen gas (N2)?
What You’re Being Tested On:
Explore the learning objectives taken directly from the College Board’s AP® Environmental Science Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.
The Nitrogen Cycle
Learning Objective: ERT-1.E
Explain the steps and reservoir interactions in the nitrogen cycle.
Essential Knowledge: ERT-1.E.1
The nitrogen cycle is the movement of atoms and molecules containing the element nitrogen between sources and sinks.
Essential Knowledge: ERT-1.E.2
Most of the reservoirs in which nitrogen compounds occur in the nitrogen cycle hold those compounds for relatively short periods of time.
Essential Knowledge: ERT-1.E.3
Nitrogen fixation is the process in which atmospheric nitrogen is converted into a form of nitrogen (primarily ammonia) that is available for uptake by plants and that can be synthesized into plant tissue.
Essential Knowledge: ERT-1.E.4
The atmosphere is the major reservoir of nitrogen.
