kis sadi da suru vich sansar de abadi ik arab ha
Answers
World population milestones went unnoticed until the 20th century, since there was no reliable data on global population dynamics.[2]
Estimated and projected populations of the world and its inhabited continents from 1950. The shaded regions correspond to range of projections by the United Nations Department of Economic and Social Affairs; for example, it estimates that the world population will reach 8 billion between 2022 and 2035.[1]
Estimated and projected populations of the world and its inhabited continents from 1950. The shaded regions correspond to range of projections by the United Nations Department of Economic and Social Affairs; for example, it estimates that the world population will reach 8 billion between 2022 and 2035.[1]
It is estimated that the population of the world reached one billion for the first time in 1804. It would be another 123 years before it reached two billion in 1927, but it took only 33 years to rise by another billion people, reaching three billion in 1960. Thereafter, the global population reached four billion in 1974, five billion in 1987, six billion in 1999 and, by some estimates, seven billion in October 2011 with other estimates being in March 2012.[3] It is projected to reach eight billion by 2024–2030. According to current projections, the world's population is likely to reach around nine billion by 2035–2050.