Earth Systems
100

What is believed to have caused mass extinctions of living organisms and global climate changes throughout geologic history?


Asteroid/Meteor impacts.

200

Volcanoes are mainly formed when one plate _________ another plate.

subducts under

300

Scientists inferred the density of the materials making up the Earth’s layers by studying how quickly waves of energy travel through the layers. Which layer is the most Dense?

the Core

400

What type of plate movement is most likely to cause an earthquake?

Transform 

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