The given line graph illustrates a proportion of the forest had covered the total land area in five countries (Finland, Brazil, Canada, Indonesia and Nigeria) from 1990 to 2020.
Overall, Finlands’ land area became more covered in forest, while three countries became less covered in forest (Brazil, Indonesia and Nigeria. Most notably, Canadas’ land area remained unchanged throughout the given period.
The land area that increased in covered by forest is Finland, whereas the other three countries decreased in covered by forest are Brazil, Indonesia and Nigeria. Finlands’ land area was the biggest throughout the period. Between 1990 and 2020, its land area being covered by forest rose gradually from above 70% to around 78%, respectively. Brazil which started as the second most land area being covered by forest with about 68% in 1990 and witnessed a slight decrease to approximately to 65% in 2000, before reducing midly again to above 60% in 2010 (and remained unchanged until 2020).
Regarding the remaining countries land area, it is evident that Indonesia and Nigeria dropped significantly throughout, with Indonesia started at 60% in 1990 and dipped consistently to above 50% after three decades, while Nigeria began with below 20% in 1990. Between 1990 to 2020, this proportion then dropped significantly to around 2%, which was the lowest point in the chart. Most notably, Canadas’ land area started at 40% in 1990, and remained stable until the end of the period.