Exam 9: Planetary Geology: Earth and the Other Terrestrial Worlds

The choices below describe four hypothetical planets.Which one would you expect to have the hottest interior? (Assume the planets orbit a star just like the Sun and that they are all the same age as the planets in our solar system. )

Which two properties are most important in determining the surface temperature of a planet?

Suppose we use a baseball to represent Earth.On this scale,the other terrestrial worlds (Mercury,Venus,the Moon,and Mars)would range in size approximately from that of

All the following statements about Venus are true.Which one offers evidence of a global repaving about a billion years ago?

Which of the following describes tectonics?

What is the importance of "blueberries" found on Mars?

When we see a region of a planet that is not as heavily cratered as other regions,we conclude that

When we say that a liquid has a high viscosity,we mean that it

How long,approximately,do geologists estimate it takes for the entire seafloor to be replaced due to plate tectonics?

Why do we think Mercury contracted within about a billion years after it formed?

You discover an impact crater that is 10 kilometers across.Which of the following can you conclude?

The relatively few craters that we see within the lunar maria

How do the size and chemical composition of a planet determine its internal temperature?

Why is Earth's continental crust lower in density than seafloor crust?

The processes responsible for virtually all surface geology are

What do we mean when we say that the terrestrial worlds underwent differentiation?

Which of the following is not evidence for plate tectonics on Earth?

Which of the following is the underlying reason why Venus has so little wind erosion?

What is the main visual difference between the lunar highlands and the lunar maria? What are the implications of this observation?

The lithosphere of a planet is the layer that consists of