The continental crustal plates have moved hundreds of miles in the last 200 million years. This is due to

Which layer of the earth is the hottest?

Choose the correct answer about the Ring of Fire

Compared to oceanic crust near deep-sea trenches, oceanic crust near mid-ocean ridges is

What best describes the process of subduction?

Compared to Earth's continental crust, Earth's oceanic crust is

When the sea floor spreads apart, volcanoes and ridges are formed because

The earth's mantle is made up of very hot material that rises to the top of the mantle, cools, then sinks, reheats, and rises again, constantly repeating the cycle. These currents cause the earth's crust to move. They are

Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these BEST explains these observations?

One of Alfred Wegener's problems in explaining his Theory of Continental Drift was

Coal beds in Antarctica indicated to Wegener that this continent was

Most volcanoes occur

Early mapmakers thought continents might have moved based on their observations of

What do you call the process in which fluids are heated, rise, cool, and then sink?

Which represents the correct order of the density layers of the earth from outermost to innermost

Which of the following is NOT part of the Earth's lithosphere?

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