Question

At the beginning of which century the world population was one billion? Twentieth Century
Twenty First century
Nineteenth Century
Seventeeth century​

Answer 1

Answer:

seventeen century

Explanation:

hope it helps you plz mark as brainliest

Answer 2

Answer:

approximately in seventeen century

Explanation:

World population milestones went unnoticed until the 20th century, since there was no reliable data on global population dynamics. It is estimated that the population of the world reached one billion for the first time in 1804.