The graph below shows the amounts of waste produced by three companies over a period of 15 years
The line graph compares the volume of waste output during the period from 2000 to 2015 by three companies
Overall, company A and B were a similar status that cutting their production waste in these years, By contrast, companny C increase its production waste in the same period.
In 2000, the waste production of company A was highest around 12 tonnes, compared to company B was around 8 tonnes and company C was around 4 tonnes. Over the following 5 years the amount of waste output produced by 3 companys had a little change. Company A decreased to 11 tonnes in term of volume of waste. By contrast company B and C incsreasing their waste production to 6 and 10 tonnes correspondingly.
From 2005 to 2010 we can be seen that company A and B were similar status, both firms cut off their waste production. It is noticeable company B decreased significantly to 3 tonnes white company B just cut off to 9 tonnes at the end of the period. We also seen the reverse trend in company C which rose waste output to 7 tonnes in 2005 and 11 tonnes in 2010.