Your radiograph has thin diverging black lines on it. What is the most likely cause of this?

If you were looking at a cross-section of the oceans, you would expect to find the oldest sediment:

Which device measures temperature?

Use the image below to answer the following two questions.

As you move closer to shore, you find more gravel.

Use the image below to answer the next two questions.  

Which feature (number) is a deep-long depression in the seafloor that is associated with subduction?

What type of plate boundary is represented in image C.  Be specific…if it is a convergent plate boundary, what type of convergent boundary is it?

If I decrease the temperature of the water, density will:

Use the image below to answer the questions 1-3.