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Carefully examine the  polished slice of meteorite. It is 4.6 billion years old. Is this meteorite a differentiated or an undifferentiated meteorite?

Imagine that this photograph is our first close-up picture of an extrasolar planet called Incognita in the Alpha Beta system. Incognita has a density of about 3.6 g/cm3. We think that this solar system formed 1.6 billion years ago.  The scene is about 250 km across. Suppose that you had no other information about Incognita.  What can you infer about Incognita’s present state and past geologic history from this photo?      

Mass movement commonly affects steep slopes on the planets. After examining the following image of Mars, select the letter associated with a landslide.

From the abundance of craters, you can tell that the following moon is which of the satellites of Jupiter?

Select the letter on the following cross section of Earth that shows where the Silicic continental crust is made.

Examine the following image Ganymede. What are the regularly spaced troughs?

Using the following shaded relief map, select a transform plate boundary.

The following images show impact craters on the Moon, Mars, Venus, and the Earth. Each has distinctive features because of the geologic processes that affect the surface. Which image is of a crater on Mars?

Which list correctly gives the relative density of the planetary bodies? The most dense planetary body should be on the left and progressively less dense ones on the right.

Comets are thought to have originated in a different part of the solar nebula than asteroids because