4A cont.
This characteristic of the earth's atmosphere allows sunlight to penetrate.
What is transparent?
This is the belief that all geological processes are natural, have always been the same and at the same gradual rate.
What is uniformitarianism?
This liquid layer of the earth may be responsible for the earth's magnetic field.
What is the outer core?
These plates make up the earth's crust.
What are tectonic plates?
These catastrophic episodes allow geologists to collect data to model the earth's interior.
What are earthquakes?
This is the safest place in the galaxy.
What is the space between the galaxy arms?
This discontinuity is found between the crust and the mantle.
What is the Moho or Mohorovičić discontinuity?
This is the shape of the earth's orbit.
What is an ellipse?
This layer of the upper mantle is below the lithosphere.
What is the asthenosphere?
This is the location in the solar system where water exists in a liquid and carbon dioxide exists as a gas.
What is the sun's habitability zone?