Question

What are world population at the beginning of 21st Century ?

(A) 4 billion (B) 5 billion

(C) 6 billion (D) 8 billion​

Answer 1

Explanation:

At the beginning of our era lived between 200 to 300 million, which was in 1750 slightly more than 750 million inhabitants. According to UN data, in the world today (in 2016) lives 7.419 million people.