If you need to select a sampling method for industrial hygiene sampling what are the factors that you must consider?

"pacesetter of the south," comma inside the quotes

Answer cumulus clouds;

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.

The correct answer is:   [b]:   "has no atmosphere" .