Modern humans have existed for over 100,000 years, but only over the last ________ years has Earth's population grown three orders of magnitude, from a few million people to over six billion today.

Question

Quizplus · Accepted Answer

The growth of human population from a few million to over six billion has occurred only in the last 10,000 years, which corresponds to the Neolithic era when humans started to engage in agriculture and settled communities. The other options, 20,000, 1 million, and 2 million years ago, are all much earlier in human history and do not coincide with the tremendous population growth seen in recent times.

Modern Humans Have Existed for Over 100,000 Years, but Only