Answer.

The amounts of carbon dioxide (CO2) generated per capita in the United Kingdom, Sweden, Italy, and Portugal from 1967 to 2007 are plotted on the chart. The unit is in metric tonnes(mt).

While United Kingdom and Sweden had general downward trends in the first 20 years from 1967 to 1987, Italy and Portugal's value had increased over the time period.

From 1967 to 1977, Sweden, Italy and Portugal's average amount of CO2 produced grew with the fastest rate, 4.1 to 6.2 mt for Italy, from 1.1 to 2.1 mt for Portugal and Sweden peaked at 10.2 mt in 1997. The UK, however, produced 0.1 mt less in this period.

In the next 20 years, the amount of CO2 generated by Portugal and Italy continued to go up to 5.1 mt and 7.8 mt respectively and then leveled off from 1997 to 2007. UK had a linear downward curve in all time period, which ended at 9 mt in 2007. Sweden's plummeted from its peak in 1997 to roughly 7 mt in 1987 and then decreased by another 2 mt down to 5 mt in 2007.

The amounts of carbon dioxide (CO2) generated per capita in the United Kingdom, Sweden, Italy, and Portugal from 1967 to 2007 are plotted on the chart. (Charts are bar charts and pie charts. Is this a chart?) The units are metric tonnes (mt).

While United Kingdom and Sweden had general downward trends in the first 20 years from 1967 to 1987, Italy and Portugal's value emissions had increased over the time period.

From 1967 to 1977, Sweden, Italy and Portugal's average amount of CO2 produced grew at with the fastest rates, 4.1 to 6.2 mt (The units for values expressed as rates cannot be metric tonnes. You need metric tonnes per unit of time. The numbers that you wrote -- 4.1 and 6.2 -- are not rates; they were absolute values. ) for Italy, from 1.1 to 2.1 mt for Portugal and Sweden peaked at 10.2 mt in 1997. (non-parallel sentence structure. Repeat the same structure for the third country.... and from 8.4 to 10.2 for Sweden.) The UK, however, produced 0.1 mt less (Less than what?) in this period.

In the next 20 years, the amount of CO2 generated per capita in by Portugal and Italy continued to go up to 5.1 mt and 7.8 mt respectively and then leveled off from 1997 to 2007. UK had a linear downward curve in all during the entire time period, which ended at 9 mt in 2007. Sweden's plummeted from its peak in 1997 to roughly 7 mt in 1987 and then decreased by another 2 mt down to 5 mt in 2007.


Here is a model essay:

This line graph compares the average amount of carbon dioxide released annually per person in four different countries (the UK, Sweden, Italy and Portugal) over a 40-year period, 1967 to 2007. Measurements are given in metric tonnes and the values shown on the graph range from less than one to eleven tonnes.

Overall, the graph can be divided into two time periods. During the first thirty years, from 1967 to 1997, two countries (Portugal and Italy) showed an increase, and the other two (the UK and Sweden) showed a decrease. After 1997, emissions in three countries decreased and they were nearly flat in the fourth (Portugal).

The ranking of the countries changed substantially from the beginning to the end. In 1967, the UK had the highest value, at about 10.8 tonnes. This was followed by Sweden (8.5), Italy (4.1) and Portugal (1.3). In 2007, the leader was still the UK at 8.7 tonnes, followed by Italy (7.8), Portugal and Sweden (5.5).

In particular, the UK showed a constant value (about 10.8) for the first ten years followed by slowly declining linear curve (a rate of about 0.6 tonnes per year) from 1977 to 2007. In contrast, Sweden, Italy and Portugal had large increases in the first ten years; emissions went up in Sweden by about 16% (from 8.8 to 10.2), over 45% (4.2 to 6.2) in Italy, and 83% in Portugal (1.2 to 2.2). The year 1977 was a year of peak emissions for Sweden. In the next ten years, it decreased its per capita emissions by over 30% (10.2 to 7.1), and continued its decline at a linear rate of 0.1 tonnes per year from 1987 to 2007. Portugal had the largest percentage increase (over 350%) over the period, though its per capita emissions were nearly constant over the final ten years.

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Hie! In 3rd para, you have written Sweden peaked at 10.2 mt in 1997 (which is actually 1977) & in last para Sweden's plummeted from its peak in 1997 (which is again 1977) to roughly 7 mt in 1987