Which of the following can be used to predict volcanic eruptions? A. Increased speed of movement in mantle convection cells
B. Cooling water temperatures
C. Increased sulfur dioxide emissions
D. Continental crust begins to slide under oceanic crust

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.