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1. Áß¾ÓÀϺ¸
http://joongang.joinsmsn.com/article/aid/2012/03/30/7389477.html?cloc=olink|article|default
2. ÇÑ°Ü·¹½Å¹®
http://www.hani.co.kr/arti/society/health/526353.html
3. Korea Times
http://www.koreatimes.co.kr/www/news/nation/2012/04/117_108082.html
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Find the answers for the following questions by reading Korea Times.
Write in English briefly.
1. What have casued the seasonal sand storms around Korea?
2. Why is dust blowing from Manchuria more harmful than dust from Gobi Desert?