12 Questions
What is the composition of the Earth's inner core?
Iron and nickel
Which layer of the Earth is composed of semi-solid rock and is capable of flowing?
Mantle
What is the primary process that causes movement and convection currents in the Earth's mantle?
Radioactive decay
What is the approximate temperature of the Earth's inner core?
Around 5,000 degrees Celsius
The Earth's inner core is composed of liquid iron and nickel.
False
The lithosphere is the thickest layer of the Earth's interior.
False
The movement of tectonic plates is primarily caused by convection currents in the Earth's outer core.
False
The process of subduction occurs when two tectonic plates move away from each other.
False
The asthenosphere is the thickest layer of the Earth's interior.
False
The Earth's outer core is composed of solid iron and nickel.
False
Convection currents in the Earth's mantle are primarily driven by radioactive decay.
True
The process of subduction occurs when two tectonic plates collide and move towards each other.
True
Study Notes
Earth's Inner Core
- Composed of solid iron and nickel
- Approximate temperature: extremely high
Earth's Layers
- Lithosphere: not the thickest layer of the Earth's interior
- Asthenosphere: not the thickest layer of the Earth's interior
Earth's Mantle
- Composed of semi-solid rock, capable of flowing
- Convection currents: primary process caused by heat from radioactive decay
- Drives the movement of tectonic plates
Plate Movement
- Caused by convection currents in the Earth's mantle
- Process of subduction: occurs when two tectonic plates collide and move towards each other
Test your knowledge about the composition and layers of the Earth's interior. This quiz covers topics like the composition of the Earth's inner core, the layers of the Earth, and the processes that cause movement in the Earth's mantle.
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