Final Exams Science Quiz

Which method is commonly used to determine the absolute age of rocks?

• Relative dating

• Radiometric dating

• Fossil comparison

• Weathering analysis

When an object in space comes between sun and a third object, it causes a shadow on the third object, causing an …………………..

• eclipse

• asteroids

• intrusion

• extrusion

Fossils that are widely distributed and represent organisms that existed for a relatively short period of time are known as:

• Trace fossils

• Mold fossils

• Cast fossils

• Index fossils

Which radioactive isotope is commonly used to date relatively young organic materials?

• Uranium-238

• Potassium-40

• Carbon-14

• Rubidium-87

…………………………….. is the number of years that have passed since the rock formed.

• Relative age

• Absolute age

• The Geologic Time Scale

• Radioactive decay

is its age compared to the ages of other rocks.

• Relative age

• Absolute age

• The Geologic Time Scale

• Radioactive decay

According to the ........................... , the oldest layer is at the bottom and the youngest layer is at the top.

• law of superposition

• Absolute age

• The Geologic Time Scale

• Radioactive decay

What were the dominant animals of the Cenozoic Era?

• Mammals

• Birds

• Reptiles

• Amphibians

What were the dominant animals of the Mesozoic Era?

• Mammals

• Birds

• Reptiles

• Amphibians

One complete revolution of Earth around the Sun takes:

• 365 days

• 30 days

• 24 hours

• 7 days