What kept the polynesians and lapita from creating an empire in this region?
the vast expanse of the ocean
they encountered stronger groups
othey lacked technical knowledge
there were not enough people

Answer b.adi admin hope this

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

Answercompass direction;

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