Band 6+: The graph shows the percentage of four different types of fuels in use between the years 1800 and 2000. Summarize the information by describing the main features of the graph and making comparisons where appropriate.

The provided line graph illustrates the percentages of four various types of used fuels: wood, coal, oil, and gas over a span of 2 centuries.

Overall, it is evident from the graph that wood experienced a sharp fall over this period. Whereas, coal displays a remarkable growth, before declining in 2000. In comparison, oil usage started only in 1900 with an upward trend, and this shift was followed by gas.

In terms of wood, it reveals 100% in the 17th century, then saw the sharpest drop. It fell slightly to 40% in 1900 and reached a zero in 2000. To compare, utilized coal was not used in 17th century, exhibiting an initial increase in the following decades until 18th century, reaching for 70%. From that moment, it demonstrated a downward trajectory, accounting for 45% in 1950 and hitting a low of 35% in the 19th century.

It is worth noting that oil and gas indicates approximately the same results. Both of the fuels started from a zero in 1900. In the domain of oil, it reached a peak of around 30%, remaining constant in the further years. This trend was continued in gas, converging at 30% in 2000.