Can you construct a triangle that has side lengths 8m 10m and 19m

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.

How is this a question? where are the answer choices?

The answer is d., a mountain.