Volcanic eruptions are more violent when more are dissolved into the magma.
a. rocks
b. gases
c. basalts
d. silicates

Gemstones are commonly found in pegmatites, which are igneous rocks that are a. exceptionally mafic b. exceptionally coarse grained c. exceptionally fine grained d. extrusive, forming from lava

What happens to rock when acid reacts with it?

Which area on the map would be most likely to have the most oil exploration in since the start of the 21st century? a) b) c) d) plz me