Exam 16: Earth and Moon: Bases for Comparative Planetology

____________________ waves are seismic waves that do not travel through Earth's liquid core.

The moon's distance from Earth is measured very accurately by bouncing a laser beam off of a small mirror left on the surface of the moon. If a laser is fired at the moon and the signal returns in 2.6 seconds, what is the distance to the moon?

Describe the four stages in the development of a terrestrial planet.

On the moon, the maria have fewer craters than the highlands.

Earth's magnetic field is generated in the iron-rich mantle.

The ____________________ hypothesis for the formation of the moon suggests that the moon and Earth formed from the same cloud of material and coalesced as two separate objects.

The Himalayan Mountains are rugged, jagged peaks and the Appalachians are smooth and rolling. Why is there a difference?

The magnetic field of Earth is thought to be generated by motions in its

Which of the following is not produced by plate tectonics?

The greenhouse effect occurs on Earth because carbon dioxide is

The ____________________ of Earth is composed of rocks at high density that behave as a plastic.

In the diagram below label each of the major divisions of Earth's interior.

The separation between Africa and the Arabian peninsula is a(n) ____________________ valley.

The central part of Earth's core is solid.

The ozone layer is produced by oxygen atoms that link to form O₃.

Compared to Earth, wind and water erosion on our moon is

Which hypothesis concerning the formation of the moon makes predictions that best fit the observed lunar data?

Explain how we can determine the relative ages of lunar features.

____________________ are great lava flows covering 17% of the lunar surface.

Why would a decrease in the density of the ozone layer create a public health concern?