29.Howcouldanarchaeologisttellifflowingwaterratherthanhumanbehaviorwasresponsibleforthedepositionof
artifactsatanarchaeologicalsite?
a.Artifactsandunmodifiedrocksmightbeimbricated.
b.Artifactsandunmodifiedrocksmightbeorientedtothedirectionofflow.
c.Bothartifactsandunmodifiedrocksmightbeimbricatedandartifactsandunmodifiedrocksmightbe
orientedtothedirectionofflow.
d.Thereisnowaytotell,andthereforetheartifactassemblageislikelytobemisinterpreted.
30.Whatinformationdoicecorestakenfromseveralplacesintheworldindicate?
a.Thelast10,000yearshavebeenthewarmesttimeontheearthoutofthelast100,000.
b.Theclimateoverthelast10,000yearshasbeensurprisinglystable.
c.Boththelast10,000yearshavebeenthewarmesttimeontheearthoutofthelast100,000andtheclimate
overthelast10,000yearshasbeensurprisinglystable.
d.Globaltemperatureshavedecreasedsignificantlyinthelast100years.
31.Thelawofsuperpositiongivesustheinformationthatthe“story”ofthepast
a.beginsatthesurface,withsucceeding“chapters”lyingbelow.
b.beginsatthebottom,withsucceeding“chapters”lyingabove.
c.cannotbereadmerelyfromthestrataoftheearth.
d.isinterpretedonlythroughthepatientworkofthearchaeologist.