E & S 2nd Sem

Which of the following is the probable cause of plate movements?

• convection currents in the mantle

• topographic highs

• strain

Which type of mountain forms when large pieces of Earth's crust are tilted, uplifted, or dropped down between large faults?

• hot spot volcanoes

• fault-block mountains

• uplifted mountains

Which of the following is not caused by earthquakes?

• flood basalt

• collapse of building

• tsunamis

What is the random emission of particles from the nucleus of a radioactive atom at a constant rate called?

• radioactive minerals

• radioactive decay

• half-life

What formed when the uppermost portion of Earth's mantle cooled?

• sediment

• meteorites

• Earth's crust

The first life on Earth was a small cell with no nucleus called what?

• prokaryotic cell

• eukaryotic cell

• algae

What were the most common land plants of the Mesozoic?

• ammonites

• cycads

• conifers

A scientist who studies fossils to learn about organisms that lived long ago.

• chemist
• biologist
• astrologist
• paleontologist

The Geologic Time Scale is a record of what?

• old geologists
• sweet geology music
• the known history of rocks and fossils
• a list of every living thing ever

Which of the following statements about the fossil record is true?

• all organisms become fossils
• organisms having soft body parts make up most of the fossils
• all organisms that have shells become fossils
• the fossil record is incomplete