Exam 6: Earth and Its Moon: Our Cosmic Backyard

Almost all of our atmospheric gases lie in the

The tidal pull of the Moon is an example of a differential force, as the near and far sides of the Earth do not experience the same gravitational pull of the Moon.

The lunar mare are younger than any of the craters that sit in them.

Name two observable consequences of the Earth's tidal pull on the Moon.

The most important greenhouse effect gas in our atmosphere is .

One source of the energy for volcanism and plate tectonics is radioactivity in the Earth's interior.

The average rate of erosion on the Moon is far less than on Earth because

When and why do neap tides occur? How much tidal variation is noted?

The most abundant gas in the Earth's atmosphere is

The are two layers of charged particles trapped by our magnetic fields.

Why does the Moon play a larger role in tides than the Sun?

The atmospheric gases primarily responsible for our greenhouse effect are

What is the primary source of erosion on the Moon today?

The water that has been detected on the Moon lies at its _ .

In the past, most of the landmass on Earth was concentrated in a single, large continent.

The far side of the Moon was first mapped

What is true of the Moon's orbital and rotational periods?

The tidal pull of the Sun largely cancels that of the Moon at the phases.

A seismograph could register P but not S waves from an epicenter on the opposite side of the Earth.

Plate is the process by which convection within the mantle reforms the crust above it.