The line graph indicates the UK acid rain emissions over 17 years

The line graph provided reveals the tones of acid rain discharge=emissions in terms of four sectors(electrics, others, and so on)in Britain areas from 1990 to 2007.

Overall

,

it is clear that

the data of the three sectors experienced a downward trend. And the total amount of acid rain emissions went down over a period of 17 years. The figure for xx remained stable, without too many changes. In 1990, the number of some was by far the highest, at approximately 3.2

MT

. The blue and light blue showed a similar decline, with slightly above 2

MT

and around 0.6 MTrespectively. What’s more, the dark blue stayed steady between 0.5 and 1 over the 17 years.

However

, the discharge of the purple line had a significant decrease, reaching about 0.5 million tonnes, almost reducing by 3 in 2007. The number fell down under the blue line in 1996, and under the dark blue in 2003. By 2007, 1.2

MT

of other industries were released mostly, compared to the least the light blue produced merely a rough 0.3

MT

.