Record some of the most significant changes that occurred at different times during the earth's early history in the chart below. Precambrian Eon (4,550-553 mya)
Hadean (4,550-3,800 mya) Archaean (3,800-2,500 mya) Proterozoic (2,500-543 mya)

Geology: The Precambrian Era comprises all of geologic time prior to 600 million years ago.

Transformation:

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers