This Island is the youngest Island among the group of islands due to the evidence of rock composition.
If a geologist asserts that island e is the youngest island in the group of islands off the coast of the mainland then it must be the youngest Island because the geologist claim in the light of evidence. The Island is youngest means that it is formed recently and we will know about it by the testing and analyzing rocks of this Island.
The composition of rock provides us information about the age as well as about the components of the rocks from which it is made so we can conclude that this Island is the youngest Island among the group of islands due to the evidence of rock composition.
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