How long did the formation of the terrestrial planets require in our solar system?
A) a million years
B) 100 million years
C) 4.5 billion years
D) 13.8 billion years

Question

Quizplus · Accepted Answer

The formation of the terrestrial planets in our solar system is estimated to have taken around 100 million years, based on scientific studies of the ages of rocks from the Earth, Moon, and other planets. Option A is too short of a time frame for this to occur, and option C is the age of the entire solar system, not the specific formation of terrestrial planets. Option D is the age of the universe, not the formation of terrestrial planets in our solar system.

How Long Did the Formation of the Terrestrial Planets Require