Final answer:
The pressure inferred to be 1.0 million atmospheres is found in the inner core of the Earth's interior.
Step-by-step explanation:
The pressure inferred to be 1.0 million atmospheres is found in the inner core of the Earth's interior. This layer is located at the very center of the Earth, beneath the outer core and mantle. The immense pressure in the inner core is due to the weight of all the layers above it.
Learn more about Earth's interior