How do the dry pampas and wet pampas contribute to the economic health of argentina

Search it up or look it up on the dictionarysorry i wasn't any

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary. 

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.