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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Sajan sarthak
Yes roots are really large in length than that of. height above the average crustal thickness. Here the statement is "not that much larger" indicates that crustal roots are not 9 times larger, means it is larger but not that much as in case of icebergs as we know ice has one part visible while 9 parts below the water surface.