Look back to Figure 10.6. Given your additional learning about convection in Chapter 20, explain the slopes of the lines between points A and A', and between B and B' in Figure 10.6
What will be an ideal response?
In sections 20.1 and 20.2, we learned that rising air experiences less pressure at higher elevations and expands. This causes the air to cool as the heat energy it contains is distributed over a larger volume. Similarly, sinking air compresses and warms. The lines describing the temperature changes of convecting mantle in Figure 10.6 show the same phenomenon. Rising mantle rock cools along the temperature change marked by red line A-A' and sinking mantle rock warms along the path of blue line B-B'.
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Fill in the blank with correct word.
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Answer the following statement true (T) or false (F)