The composition of the core of Earth is thought to be ________.
A)basalt
B)granite
C)peridotite
D)iron-nickel alloy

Question

Quizplus · Accepted Answer

The core of Earth is thought to be composed primarily of an iron-nickel alloy, with smaller amounts of lighter elements such as oxygen, sulfur, and silicon. This is based on seismic data and laboratory experiments that simulate the conditions in the Earth's core. Basalt and granite are both types of rocks found in the Earth's crust and are not likely to be found in the core. Peridotite is a type of rock found in the Earth's mantle and may be present in the transition zone between the mantle and the core, but is not thought to be a significant component of the core itself.

The Composition of the Core of Earth Is Thought to Be