QQuestionEarth Science
QuestionEarth Science
How are the crust and the inner core alike?
A. They are both solid.
B. They both have the same temperature.
C. They are both under the same pressure.
D. They are both very close to the center of the Earth.
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Answer
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Step 1:To solve this problem, I'll analyze the characteristics of the Earth's crust and inner core:
Step 2:: Understand the Earth's Structure
The Earth is composed of several layers: - Crust: The outermost solid layer of the Earth - Inner Core: The solid center of the Earth
Step 3:: Compare Physical States
- Crust: Solid (made of rock) - Inner Core: Solid (made of solid iron and nickel)
Step 4:: Examine the Characteristics
A. Solid State: ✓ CORRECT Both the crust and inner core are solid, despite being at very different locations and temperatures.
Step 5:: Eliminate Other Options
- Inner Core temperature: Extremely hot (approximately $$5,700^\circ\mathrm{K}$$)
B. Temperature: Different - Crust temperature: Relatively cool (varies from near surface temperature to a few hundred degrees) C. Pressure: Different - Crust: Relatively low pressure - Inner Core: Extremely high pressure (millions of times atmospheric pressure) D. Distance from Center: Different - Crust: Outermost layer, far from Earth's center - Inner Core: At the very center of the Earth
Final Answer
They are both solid. The key similarity between the Earth's crust and inner core is that they are both in a solid state, despite their vastly different locations, temperatures, and pressures.
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