Answer in detail:

Give a detailed account of the world’s population growth.

the world's population growth has been always growing at a rapid speed. It reached 500 million by 1650 and has been at an increasing rate. It reached 1 billion in 1804. The second billion was added after 123 years in 1927. Since 1950 the rise in the population has shown growth. In 2011 records it is found that the world population has reached around 7 billion. The economic growth with industrial and agricultural growth and developments has increased the rate of population growth.