The Milky Way galaxy is about 100,000 light - years across. WHAT IS THIS DISTANCE IN KILOMETERS ?

Climate change to earth function human can't reduce climate

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.