Consider the following statement and answer the question.

Statement:

It took more than a million years for the world human population to attain the one billion mark. But it took only 12 years for it to rise from 5 billion to 6 billion.

Which of the following time period can be represented from the statement?

Key Points

• The world population reached 5 billion in 1987.
• It took 12 years for the world population to increase from 5 billion to 6 billion.
• The world population reached 6 billion in 1999.
• This period (1987-1999) highlights the rapid growth in world population compared to the time it took to reach the first billion.

Additional Information

• World Population Milestones
  • The human population took over a million years to reach the one billion mark, which happened around the year 1800.
  • The second billion was achieved in just 130 years, in 1930.
  • The third billion was reached in 1960, just 30 years later.
  • The fourth billion came in 1974, 14 years later.
  • The fifth billion was reached in 1987, 13 years later.
  • The sixth billion was reached in 1999, just 12 years later.
  • This rapid increase in population growth is attributed to advancements in medicine, technology, and overall improvements in living conditions.
• Factors Contributing to Rapid Population Growth
  • Decreased mortality rates due to medical advancements.
  • Improved agricultural practices leading to better food availability.
  • Increased birth rates in certain regions.
  • Improved living standards and healthcare services.
• Implications of Rapid Population Growth
  • Increased demand for resources such as food, water, and energy.
  • Greater environmental impact and challenges such as deforestation and pollution.
  • Strain on infrastructure and social services including healthcare and education.
  • Economic challenges, particularly in developing countries.