2.2 Earth Science Test

8. a type of fossilization where the organic material becomes dehydrated

According to the _____, rock fragments found in nearby rock layers must be older than the rock layers that contain them.

1. a layer in a soil profile

3. the nutrient-rich, organic material in soil

2. soil that is rich in minerals that have drained from the topsoil

5. a fossil of a track, trail, or burrow

17. All of the following are types of soil particles except

10. The most difficult types of unconformity for scientists to identify are

6. a fossil that is useful for dating and correlating the strata in which it is found

4. a large mass of igneous rock forced between or through layers of existing rock

11. Most fossils are found in _______ rock

14. Which layer of soil contains the most humus?

Plant roots do not extend past the ____ horizon.

7. the order of rock layers

16. What two general conditions must be met for an organism to form a fossil?

15. Which organism has a better opportunity of becoming a fossil after it dies?

A rock has 4 layers, A is the top layer & D is the bottom. According to the law of superposition which layer is oldest?