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2019-2020年高考英语大一轮复习单元检测卷29Unit4Globalwarming新人教版选修Ⅰ.阅读理解ATheymaybetinyandliveforjustthreemonthsbutantscouldbethekeytosolvingclimatechange.Roughharvesterantshavebeenfoundto“weather”mineralsinsandtoproducecalciumcarbonatealsoknownaslimestone石灰岩.Whentheantsmakethislimestonetheprocesstrapscarbondioxideintherockultimatelyremovingitfromtheatmosphere.Itisuncertainhowthemineralsarechangedhoweverandtheoriesvaryalotfromantslickingthesandtoexcreting排泄thesubstance.ProfessorDornburiedsandatsixsitesintheCatalinaMountainsinArizonaandPoloDuroCanyoninTexas25yearsago.Everyfiveyearshemeasuredthemineralsinthesandanddiscoveredtheantsbrokedownmineralsupto300timesfasterthansandleftundisturbed.ProfessorDornbelievestheantscollectcalciumandmagnesium镁andusetheseelementstomakethelimestone.Thismayoccurwhenantslicksandgrainstostickthemtothe...。