The graph below shows average carbon dioxide emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007.

The graph below shows average carbon dioxide emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007.
The line graph illustrates the rate of carbon dioxide
emissions
by each person in four different counties in a 40-year
period
. The units are measured in metric
tonnes
. At the onset,
it is clear that
the average carbon dioxide
emissions
in the UK and Sweden decreased over the
period
,
while
in Italy and Portugal, it had an upward trend. The highest
emissions
were in the United Kingdom. Regarding the UK, it had a steady decline at the beginning of the
period
with just over 10 metric
tonnes
until it reached 8 metric
tonnes
in the
last
year of the
period
.
Likewise
, by 1977, the
emissions
in Sweden went up from almost 9 to over 10 metric
tonnes
, before oscillating until the end of the
period
with roughly 5 metric
tonnes
of
emissions
per person.
On the other hand
, the CO2
emissions
in Itlay
,
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started at around 4 metric
tonnes
in 1967 before climbing slightly to over 6 metric
tonnes
ten years later after which it palpitated in 2007 at nearly 8 metric
tonnes
. In the case of Portugal, it had the lowest
emissions
throughout with only 1 metric tonne in 1969, before rising gradually until it reached approximately 5 metric
tonnes
in the final year.
Submitted by s_syedy on

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Vocabulary: Replace the words emissions, period, tonnes with synonyms.
Vocabulary: Rephrase the word "undefined" in your introduction.
Vocabulary: The word "reached" was used 2 times.
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