Fossils

Which of the following is NOT used to determine the geologic time and age of the Earth?

• Radiometric Dating
• Index Fossils
• Law of Superposition
• Disturbed Rock Layers

Where can the oldest layer of rock be found in undisturbed rock strata?

• The top layer
• The middle layer
• They are all the same age
• The bottom layer

In what kind of rock can fossils be found?

• Sedimentary Rocks
• Igneous Rocks
• Metamorphic Rocks
• Granite

How are fossils created?

• Traces of organisms get turned into stone.
• Dead organisms are quickly buried for millions of years.
• Animals get trapped.
• All of the above

Which layer formed first?

• Rock Layer W
• Rock Layer X
• Rock Layer Y
• Rock Layer Z

Sedimentary rocks form when broken bits of other rock are deposited and then .....

• buried and squeezed and cemented together
• melted by the heat of the Earth's core
• completely dissolved in the salt water of the ocean 
• used by humans as a natural resource

Fossils give us evidence about which of the following?

• plants and animals that lived long ago
• how weathering and erosion break down rocks
• the other planets in our solar system
• the transfer of energy from one form  to another

Finding the fossils of trees in an area that is currently a desert without much life might tell us that the area, millions of years ago - 

• was heavily eroded by strong winds
• received enough rain to support a forest
• suffered very powerful earthquakes
• was destroyed by the impact of meteorites

Several wooly mammoth fossils have been found. Mammoths, which lived hundreds of thousands of years ago, were covered with thick fur.  Based on the evidence, mammoth fossils tell us that the area in which they are found - 

• has too many humans 
• no longer has large animals 
• was, at one time, very cold
• receives more rain that it used to 

Finding fossils in an area can help us learn what about that location?

• Which places in the region receive the most sunlight
• The effect of the climate on the formation of the soil
• How modern plants and animals interact there
• The kinds of organisms that lived there long ago