Which of the following occurs as a result of the coal-scrubbing process? A) a reduction in acid rain
B) a reduction in acid-mine drainage
C) a reduction in the production of wall boards or sheetrock
D) a reduction in the production of gypsum
E) none of the above

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.