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We know a great deal about the Arctic Ocean. Either your,
1) Map is outdated, or
2) White represents ice.
Acid rain is found in Sweden and is caused by air pollution in Britain and other countries of Europe. The pollution produced in Britain ends up mostly in Scandinavian countries- countries of northern Europe including Sweden, Norway and Denmark. In the USA, the winds blow air pollution to certain areas in Canada.
Acid rain has terrible effects on water life. Thousands of lakes in Scandinavia have no more life in them. They have received so much acid rain for so many years that life has been snuffed out and nothing can survive in these waters.
During the summer solstice or for dates right now it is June 21
The quality of a place (city, town, suburb, neighborhood) that contribute to the quality of life experienced by residents and others or quality of social interaction.