Answer:
Molarity indicates the number of moles of solute per liter of solution and is one of the most common units used to measure the concentration of a solution.
Explanation:
Subsoil is the layer of soil under the topsoil on the surface of the ground.
Well, the cause of a volcanic eruption is when the lower crust melts. This leads to the formation of magma. The volcano is an opening through which the magma is discharged. The rock inside the earth melts. This magma is diffused upwards through the volcano. If magma reaches the top of the volcano, it behaviour depends on viscosity. So what happens before a volcanic eruption is that the lower crust melts, causing the formation of magma, which is released through the volcano. Hope i helped.
4 infiltration percolation!! I think! Correct me if I’m wrong
