released EOG questions Unit 1 - Earth History

A geologist identifies the identical index fossil in a rock layer from two different areas. Which conclusion is best supported by this discovery?

• The deposition rate of the two rock layers was identical.

• The fossil organism evolved independently in the two separrate areas.

• The two rock layers were deposited at approximately the same time.

• The index fossil will also occur in sediment deposited on top of these rock layers

Which supports the theory that some mountains were once at the bottom of an ocean?

• There are underwater mounttains on the ocean floor today.

• Freshwater rivers flow to the ocean.

• Fossils of marine organisms are found on the tops of some mountains.

• Both mountains and ocean floors have similar mineraals in their rrocks.

Tags

NGSS.HS-ESS1-5

Which is the most accurate method scientists use to predict the age of Earth?

• Relative dating of rock layers

• Radioactive dating of rocks

• Comparing the ages of different fossils.

• investigating core samples from the Artic

Tags

NGSS.HS-ESS1-6

Which is the best reaason for scientists to study ice cores obtained from Earth's ice caps?

• tto evaluate potential oil drilling sites

• To study the quality of water stored in glaciers

• to determine the rate of melting in polar regions

• to Study past climates by analyzing trapped gases and particles

Which is the most accurate way of determining the age og a fossil

• Radioactive dating

• Relative dating

• dating index fossils

• daating the rock layers above the fossil

Which allows scientist to investigate what Earth's climate was like over the past 740,000 years?

• Volcanic deposits

• fossils

• faults

• ice cores

Which best describes uniformitarianism?

• The time it takes for erosion to occur has changes since Earth firrstt formed.

• The movement of the continents no longer occur because of changes in ocean currents.

• The processes that shape the Earth continue as they have since the Earth formed

• The formation of rock layers has slowed because humans have altered the environment

Tags

NGSS.HS-ESS2-1