The concept of separation and balance of powers in the constitution refers to

a separation of powers between separate and coequal branches of government.

Explanation:

The separation of power is a model of a governance f a state and is divided into various branches that are separated by an area of responsibility as a legislature, judiciary and executives. The intent of separation is to prevent the concentration of powers.

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.