The assigned graph elucidates how proportion of several kind of fuels varied from 1800 to 2000. Having zeroed in on illustration, wood was the maximum used fuel. Setting of at 100% in year 1800, usage of fuel took a nosedive dramatically to nearly 7% in 1850. Eventually, this category declined to almost negligible in 2000. As far as coal was concerned, usage of fuel soared to about 70% in 1900. As 15 years elapsed the coal usage dwindled to 32% in 2000. Further scrutinizing the chart reveals that gas as well as coal started consuming in the year 1900. As regards gas, utilization demonstrated a soaring trend and this figure reached at 30% gradually. Following this, this consumption of oil notched to 30% and in this heading usage of oil remain stagnated till 32%. In sum and substance oil and Gas clinched the first place. In contrast the usage of wood totally ended. 
The assigned graph elucidates how proportion of  
several kind
 of  
fuels
 varied from 1800 to 2000. Having zeroed in on illustration, wood was the maximum  
used
  fuel
. Setting of at 100% in year 1800,  
usage
 of  
fuel
 took a nosedive  
dramatically
 to  
nearly
 7% in 1850.  
Eventually
, this category declined to almost negligible in 2000. As far as coal  
was concerned
,  
usage
 of  
fuel
 soared to about 70% in 1900.  
As
 15 years elapsed the coal  
usage
 dwindled to 32% in 2000.  
Further
 scrutinizing the chart reveals that gas  
as well
 as coal  
started
 consuming in the year 1900. As regards gas, utilization demonstrated a soaring trend and this figure reached at 30%  
gradually
. Following this, this consumption of oil notched to 30% and in this heading  
usage
 of oil remain stagnated till 32%. In sum and substance oil and Gas clinched the  
first
 place. In  
contrast
 the  
usage
 of wood  
totally
 ended.