The chart below shows the percentage of five North American lakes covered in ice during two 20-year periods. Summarise the imformation by selecting and reporting the main features, and make comparisons where relevant.
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The bar graph shown compares the amount of lake covered in ice of five different North American lakes across 2 different time periods which are from 1973 to 1992 and from 1992 to 2012.
Overall
, if we take the two periods in combination, it is clear that
the higher frozen proportion occurred during the first one, from 1973 to 1992.
During the 19-year period
of 1973 to 1992, the glaciated part of Erie Lake was at its highest, at exactly 30%, whereas
in the second period
, this
number was reduced by approximately 2.5%, equivalent to roughly 27.5%. Nevertheless
, Erie still remained the highest in both periods. In contrast
, Ontario Lake was covered the least in ice, with more than 5% from 1973 to 1992, and a slight reduction to less than 5% in the other period
reported.
The other lakes, such
as Superior, Huron, and Michigan, showed broad similarities since they all decreased significantly in the following period
. As far as the 3 lakes were concerned, their solidified part in the first period
ranged from less than 15% to about 27.5%; however
, that number reduced severely to a scope of 10% to 20% in the subsequent period
.Submitted by minhlieu.hnd on
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Vocabulary: Replace the words period with synonyms.
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Vocabulary: The word "reduced" was used 2 times.
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