The chart shows the results of surveys in one African country asking teenagers the main reasons for using their phones between 2016 and 2019. Summarise the information by selecting and reporting the main features, and make comparisons where...

The pie chart demonstrates the outcome of research in an African country focusing on teenagers about what they crucially use the phones from 2016 to 2019 for.
It can be illuminated from the diagram that social networks comprised a tremendous proportion for the reasons of the young's using phones along the time. Phone calls were the most infinitesimal factor from the beginning till the end of the survey-conducting period.
We can clearly infer from the chart that social networks were the most outnumbering factor at about 50% and followed by email , which accounted for 25%.Through the time, There had been a slight fall in the percentage of email , from 25% to 19%.
Digital camera was gradually taking place email in a period of four years from the year 2016 from 15% to 20%. Until 2019, there were a striking similarity in the percentages of email and digital camera .