nThe Oldest and Youngest Places on Earth," what connection does the author make between the rock on Baffin Island and the rock on Hunga Tonga-Hunga Ha'apai?
1.the rock on both islands is among the oldest ever found on the earth.
2. The rock that formed both islands has now been absorbed back into the earth's mantle. 3.It is unusual that both islands are formed almost entirely of rock.
4.The rock on both islands has remained longer than typically would be expected.​