You should spend about 20 minutes on this task.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
The given line graph illustrates the change in world population in billions in the past from 1800 to the future till 2100. Also, the bar chart presents the current and future trend for the urban population in the developed and underdeveloped parts of the world for 25 years.
Overall, the total number of people in the world grew slowly for 150 years and then grew rapidly. The growth may continue till 2050 and may fall at an almost equal rate by the end of the period. A significant reason for the current and projected growth in population is an increase in the developing countries’ residents rather than developed ones.
The world population grew steadily for a century and a half, from 1 billion in 1800 to about 2.5 billion in 1950. However, after 1950, it increased dramatically and is projected to peak above 8 billion just before 2050. After attaining the pinnacle, the populous is projected to drop almost at the same rate to about 6 billion by 2100.
The behaviour of the line graph can easily be explained with the help of the bar graph. The number of people in developed regions remained at 1.3 billion in the past and is said to stay the same until 2040. In contrast, the developing countries’ population started with 2.2 billion and rose gradually to about 2.8 billion in the last year. Moreover, the data estimates it will attain its peak value of 4 billion by the end of 2040.