Which of the following best describes the Hadean Eon of Earth's history?
A) It was when the first abundant shelly organisms appeared in the fossil record.
B) It was a time between the formation of the Earth and the oldest rocks preserved in the rock record.
C) It was a time when stable continental interiors,termed cratons,first formed.
D) It was when the dinosaurs appeared and came to dominate large-scale terrestrial life.

Question

Which of the following best describes the Hadean Eon of Earth's history? 
A) It was when the first abundant shelly organisms appeared in the fossil record. 
B) It was a time between the formation of the Earth and the oldest rocks preserved in the rock record. 
C) It was a time when stable continental interiors,termed cratons,first formed. 
D) It was when the dinosaurs appeared and came to dominate large-scale terrestrial life.

Quizplus · Accepted Answer

The Hadean Eon is believed to be the time between the formation of the Earth and the oldest rocks preserved in the rock record. It is characterized by intense volcanic activity, frequent impacts by large asteroids, and a hot, molten surface. There is no fossil record from this time period due to the extreme conditions.

Which of the Following Best Describes the Hadean Eon of Earth's