2. What must happen to nitrogen before plants and animals can use it? 3. What organisms are able to "fix”, or convert, nitrogen to be usable by plants? How else might
nitrogen be "fixed” or converted?
4. Draw and label a graphic showing your understanding of the nitrogen cycle.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Whats one way that rocks do not follow the typical rock cycle pathway?