(c Alice leaves her house, driving east at 45 miles
per hour (mph). Thirty minutes later, her
husband Dave notices she forgot her cellphone
and sets off after her. How fast must Dave
travel in order to catch up with Alice 3 hours
after he leaves?
14.

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.

Answer meranesia;