Unit 6- Geology--Mid-Unit Content Assessment

Which of the following do geysers, volcanoes, and hot springs have in common?

• They form along faults.

• Scientists know when they will erupt.

• They form both along plate boundaries and above hotspots.

• They only form along plate boundaries.

Scientists observed that __________, which provided evidence of changes over time on Earth's surface.

• land never moved or changed

• the same types of rocks and fossils were found in different places

• the climate of Antarctica was extremely cold

• animals that once lived on land later lived under water

Numbers that describe the intensity of earthquakes based on the largest seismic wave recorded.

• Richter scale

• Seismograph

Jagged up-and-down lines show the energy of seismic waves.

• Richter scale

• Seismograph

Moving apart, colliding, and sliding sideways past one another are three ways in which _________ move.

• continents

• tectonic plates

• faults

• mid-ocean ridges

When the seafloor dips down as one tectonic plate slides under another, a narrow, extremely deep valley called a(n) _____ is created.

• geyser

• hotspot

• ocean trench

• mid-ocean ridge

When oceanic plates move away from one another and form cracks in Earth's crust, an underwater mountain called a (n) _____ is created.

• hotspot

• geyser

• mid-ocean ridge

• ocean trench

Which of the following is NOT explained by Alfred Wegener's continental drift hypothesis.

• long ago, Earth had one huge landmass called Pangea

• as continents moved apart, their climates changed

• drifting continents actually moved due to tectonic plates

• groups of plants and animals that once lived together were separated as the continents moved apart

What is the name of a volcano that has not erupted for at least 10,000 years and is not likely to erupt again?

• dormant

• active

• extinct

What is the name of a volcano that has erupted in the past 10,000 years and is likely to erupt again?

• dormant

• active

• extinct