Convection in the Earth's Mantle
Explore the process of convection within the Earth's mantle and its role in plate tectonics.
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Convection in the Earth's Mantle
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Read each question carefully and provide thorough answers. Refer to your knowledge of Earth Science and the process of mantle convection.
1. Describe the primary mechanism by which heat is transferred within the Earth's mantle. How does this process contribute to the movement of tectonic plates?
2. Which of the following best describes the physical state of the Earth's mantle?
Completely molten liquid
Rigid solid
Solid that flows slowly over geological timescales
Gaseous plasma
3. Hot material in the mantle rises due to its lower , while cooler material sinks due to its higher . This continuous movement is known as a cell.
4. The Earth's outer core is directly responsible for driving mantle convection.
True
False
5. Observe the diagram of the Earth's layers below. In the space provided, draw arrows to illustrate the convection currents within the mantle.
6. Explain how the process of mantle convection directly leads to phenomena such as volcanic activity and earthquakes at plate boundaries.