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Post Info TOPIC: After the ozone


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After the ozone
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After the ozone hole discovery, heavy investment in scientific research, marshalling of economic resources and coordinated international political action helped to turn things around.

 

อ่านต่อเพิ่มเติม โรงเรียนวัดมณีโชติ

สาระสำคัญ ตรวจสุขภาพ

 



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