Chapter 8 Plate Tectonics
Chapter 8 Plate Tectonics
Chapter 8 Plate Tectonics
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
216 CHAPTER 8: PLATE TECTONICS<br />
2. Which form of heat flow is responsible for the slow circulation within<br />
Earth’s asthenosphere?<br />
(1) insolation<br />
(2) convection<br />
(3) conduction<br />
(4) radiation<br />
3. Convection currents within Earth’s mantle are making the Atlantic Ocean<br />
(1) less salty.<br />
(2) cooler.<br />
(3) wider.<br />
(4) narrower.<br />
4. What is the approximate temperature at the boundary between the asthenosphere<br />
and the stiffer mantle?<br />
(1) 600°C (3) 2600°C<br />
(2) 1000°C (4) 3000°C<br />
Use the information in the following map and data table to answer questions<br />
5 and 6. The map shows the locations of volcanic islands and seamounts that<br />
erupted on the sea floor of the Pacific <strong>Plate</strong> as it moved northwest over a<br />
stationary hot spot beneath the lithosphere. The hot spot is currently under<br />
Kilauea.
Change language