3148General KnowledgeMedium
We live on the planet Earth. According to the scientists, the Earth was formed about _____ years ago.
A5.6 billion
B4.5 billion
C4.6 million
D5.6 million
Correct answer
B. 4.5 billion
Explanation
4.5 billion is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.