Which belongs in the summary because it is another important event caused by the main problem?

d. groundwater flows through the subsoil and deposits minerals.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.

well, i believe that the answer is 2. : 3