Question

which layer is the hottest part of earth?
outer core
inner core
crust
mantle
question 2
which layer is the thickest?
mantle
outer core
inner core
crust

Explanation:

The inner core is the hottest part of the Earth due to extreme pressure and residual heat from Earth's formation. The mantle is the thickest layer, extending from about 30 - 2900 kilometers below the Earth's surface.

Answer:

1. B. Inner Core
2. A. Mantle