Waterloo Region District School Boardteachers.wrdsb.ca/ksch/files/2015/03/gwtextchapterPDF.pdf ·...
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Waterloo Region District School Boardteachers.wrdsb.ca/ksch/files/2015/03/gwtextchapterPDF.pdf · 2017. 2. 18. · 1997 Year the Hottest Record Karl sa d the Earth's average temperature