A rapid temperature increase about 55 mya created tropical conditions around the world. What did these conditions cause?.

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

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 answer would be  b. hope this !