Use a case study to explain why a coastal habitat has distinct characteristics (8marks)

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One characteristic is is the habitat of birds like the amazon is the habitat for tukans 

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.