Geologic Time: Early Earth - Quiz Quiz

Question 1

Which statement best compares a craton and a Precambrian shield?

Revolt · Accepted Answer

A: Cratons are stable continental cores, while shields are exposed portions of cratons.

Question 2

Why do scientists use both ancient Earth rocks and meteorites to understand Earth's early formation?

Revolt · Accepted Answer

D: Meteorites preserve information lost on Earth due to tectonic activity.

Question 3

Which method allows scientists to determine the age of events like early crust formation and the Great Oxygenation Event?

Revolt · Accepted Answer

D: radiometric dating ancient rocks

Question 4

Move each answer to the correct box to classify each item as a geologic time interval or a geologic structure.

Revolt · Accepted Answer

Archean Eon,Hadean Eon,Precambrian time|craton,microcontinent,Precambrian shield

Question 5

Why do scientists use eons, eras, and periods to divide the geologic time scale?

Revolt · Accepted Answer

C: to mark significant geological and biological changes over time

Geologic Time: Early Earth - Quiz Quiz Answers