Question

study the diagram showing the range of temperature in the earths layers.
temperature of earths layers
depth (km)
410
660
2900
5150
6370
1,000 °c
1,527 °c
2,727 °c
4,727 °c
6,727 °c
what does the diagram show about earths interior?
the outer core is the hottest region.
the mantle is hotter than the outer core.
the continental crust is the coolest region
the inner core is cooler than the lithosphere

Explanation:

• Analyze each option:
• Option 1: The inner core (deeper, higher temp) is hotter than outer core, so outer core isn't hottest. Eliminate.
• Option 2: Mantle temp is lower than outer core (from diagram's temp scale). Eliminate.
• Option 3: Continental crust is part of lithosphere (shallowest, lowest temp on diagram). This matches.
• Option 4: Inner core is deeper (hotter) than lithosphere. Eliminate.

Answer:

C. The continental crust is the coolest region (assuming the option order, but based on analysis, the correct option is the one stating "The continental crust is the coolest region")