Question

Study the diagram showing the range of temperature in the Earth’s layers.

Graph of Temperature of Earth apostrophe s Layers, showing start depth at 410 kilometers and start temperature at 1,000 degrees Celsius. As depth increases to 6,370 kilometers, temperature increases to over 6,000 degrees Celsius.

Which temperature most likely corresponds to the asthenosphere?

1,613°C
2,521°C
3,628°C
6,217°C

Answer 1

1,613°C.

Reason: the asthenosphere is the upper, partially molten part of the mantle (roughly 100–410 km depth) where temperatures are typically around 1,200–1,600°C. The higher temperatures listed (2,521°C, 3,628°C, 6,217°C) correspond to deeper lower-mantle and core regions.