Living Earth Unit 4 Review

Which of the following are reasons that the moon has more craters than the Earth? Select ALL that apply.

• some asteroids burn up in Earth's atmosphere before reaching the ground

• vegetation covers some craters on Earth

• the moon is older, so it has more craters

• Earth has plate tectonics which erase evidence of craters

• Earth has erosion which erases evidence of craters

How does plate tectonics erase the evidence of craters on Earth?

• Crust (and craters) are destroyed at divergent boundaries

• Crust (and craters) are destroyed at convergent boundaries

• Crust (and craters) are destroyed at transform boundaries

• Wind and water erase the evidence over time

How does erosion remove evidence of craters on Earth?

• water and wind remove sediments over time

• water and wind break down rocks

• crust is destroyed at convergent boundaries

• crust is created at divergent boundaries

On Earth, crust and rocks are destroyed at ________boundaries and created at __________boundaries in the process of _____________________.

• divergent; transform; erosion

• convergent; transform; erosion

• divergent; convergent; plate tectonics

• convergent; divergent; plate tectonics

A mass extinction is....

• a few species of animals and plants all die usually in response to a natural disaster

• a few species of animals and plants all commit suicide together

• numerous species of animals and plants all commit suicide together

• numerous species of animals and plants all die usually in response to a natural disaster

Rock layers provide what sort of information to scientists?

• the age of rocks and fossils as well as atmospheric information preserved in the rocks

• the age of rocks

• when an asteroid occurred

• atmospheric conditions when the rocks were laid down

The age of rock on the Earth’s crust depends on its distance from an ocean ridge. A rock that is _________ away from the Mid-Atlantic Ridge will be ___________ than a rock that is closer to the ridge.

• farther, older
• closer, older
• farther, younger
• closer, younger

Which rock would be older, rock in California, Texas, or Florida?

• California
• Texas
• Florida
• None

A _____________ boundary occurs when two tectonic plates move away from each other.

• Convergent
• Divergent
• Transform
• None

A ___________ boundary occurs when two plates come together.

• Convergent
• Divergent
• Transform
• None