Study Figure 11, a photograph showing storm damage in a coastal area. Suggest why the coastal area shown in Figure 11 needs to be protected from the effects of physical processes

The answer to the question is c.

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.

Well, a and b together would be negative. b alone would also be negative.