Earth Systems Review Fossil Fuels Tuesday , January 22, 2013

In addition to long periods of time, all of the following are necessary for the formation of fossil fuels EXCEPT – A. extreme heat B. organic matter C. fresh water D. intense pressure

2. Coal often forms where once there were swamps 2. Coal often forms where once there were swamps. What characteristic of swamps is important to the formation of coal? A. High temperatures B. Abundant plant life C. Frequent rains D. Reptile predators

3. What changes buried organic matter into fossil fuels. A 3. What changes buried organic matter into fossil fuels? A. Industrial pollution B. Ocean currents C. Volcanic activity D. Heat and pressure

4. A student creates a model of the formation of fossil fuels by first placing a layer of leaves, representing organic matter, in the bottom of a cup. What step will come next in the model? A. Pouring water over the leaves to model washing away by rivers B. Adding sand on top of the leaves to model burial in sediments C. Burning the leaves to model the decay of the organic matter D. Putting the leaves in the freezer to model conditions on top of mountains

5. Several layers of sedimentary rock are illustrated 5. Several layers of sedimentary rock are illustrated. They are in the same order as when they first formed. Which layer formed first? A. Rock Layer W B. Rock Layer X C. Rock Layer Y D. Rock Layer Z