Which two phrases most likely explain how the rock shown here formed? D A. Cooling of volcanic lava on Earth's surface
O B. Sedimentation of layers at the bottom of a body of water
O C. Small grains of sand getting pressed together over time

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question