Consult the figure below. Here, distinct internal laminations are inclined at an angle to the boundary of the main sedimentary layers. These are termed __________.    

  The difference between magma and lava is __________.  

  Compaction and cementation of grains occurs during __________.  

  Minerals in geodes (as seen below) form spectacular euhedral crystals because _________.  

  Igneous rocks are formed __________.  

  Which of the following are most likely to preserve conditions of ancient environments on the Earth?  

  As compared to mafic igneous rocks, felsic igneous rocks __________.  

  The image below of Death Valley, California, shows a road that curves around a(n) __________.  

  Wegener’s proposal that the continents had once fit together as a single supercontinent was rejected by geologists at the time because __________.  

  Important volatiles in magmas include __________.