In which situation the box will accelerate more? why do you sa y so

If the box is going down it will accelerate faster

Its in the national history museum and you can't se the original because its locked away in a vault 

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.