Final answer:
The most accurate description of a sample from Earth's core would be that it contains iron and nickel. Earth's inner core is solid, composed mainly of these metals, and makes up about 85% iron with the remainder largely being nickel.
option a is the correct
Step-by-step explanation:
If a sample being analyzed is thought to be from Earth's core, the feature that would best describe the sample is that the sample contains iron and nickel. Earth's core consists primarily of these two metals. The inner core is solid due to the immense pressure from the layers above it, despite the high temperatures that exist at the planet's center.
The core is theorized to be composed of about 85% iron metal with nickel metal making up most of the remaining 15%. This composition is similar to that of metallic meteorites, which are believed to be representative of core material.
The core's composition contributes to Earth's overall density and is responsible for the generation of the planet's magnetic field. While the outer core is liquid, the innermost part of the core is thought to be solid because of the extreme pressure.