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tir eolais 2

cen uair a cruthiotar an domamhain 4.5 billúin blian o shin
ceard iad na ceathra chiseal screamh 2.maintilín3.croí lasmuaigh4.croi lastaigh.
cen teoch a bhfuil sa maintilín 4,000céim
cad atharlion go dtí na plata tectonica gluaiseanna na plátaí i dtreonna eagsúila agus ag luasana eagsula
deannain an croílar ..... magma
ba ea fillsleibhta ? nuair a bhuilainn dhá phlata in aighaidh a cheile
cen uair a chruthaitar na hailps 250 milluin blian o shin
ceard iad na tri carrigeacha bruth,meitimorfach,driodar
ainm sampla do bruthcarraig eibhear,basalt
ainm sampla do carraig meitimorfach marmar
ainm sampla do carrig driodar aolchloch
conas a tharloinn sioncathaimh ceimicach tharlionn se de bharr a lan bhruscr planda
ceard e aolchoinnel nuair a titean broanta uisce agus ghalion siad fágann siad CAILCÍLT (thar ama)
ceard é carboináit chailciam teann an abhainn foai an talamh gearrain se amach an aolchloch chruthaitar _pluis_
Created by: ellierose123



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