After about how many years of the formation of the earth, life appeared on this planet?
500 billion years
50 million years
500 million years
50 billion years
the earth was supposed to have been formed about 4.5 billion years back. It explicitly states: "Life appeared 500 million years after the formation of earth, i.e., almost four billion years back".
Join thousands of students and practice with AI-generated mock tests.