Answers

2016-01-09T08:32:26+05:30
Environmental mystries are those which had not discovered for many times or we can say that they had not been discovered yet. for example:- bermunda triangle, caves of yeti, bigfoot, etc., now they have discovered by many archeologist and several other peoples also. their are many more mystries in the world that we had not listern or know about it. 
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