Documents “U.S. 12 th graders scored below the international average and among the lowest of the 21...

âU.S. 12th graders scored below the international average and among the lowest of the 21 participating nations in both mathematics and science general knowledge in a comprehensive…

Documents Image of low latitude (tropical) ice: Quelcaya Ice Cap

âU.S. 12th graders scored below the international average and among the lowest of the 21 participating nations in both mathematics and science general knowledge in a comprehensive…

Documents Image of low latitude (tropical) ice: Quelcaya Ice Cap

Image of low latitude (tropical) ice: Quelcaya Ice Cap from: http://www-bprc.mps.ohio-state.edu/Icecore/facilities.html http://en.wikipedia.org/wiki/Image:Vostok_420ky_4curves_insolation.jpg…