Maritime polar air masses . A. bring clear, cold, dry air to much of North America

B .are warm, humid air masses that form over oceans

C. bring hot, dry weather to the southern Great Plains

D .are cold, humid air masses that bring fog to the West Coast

Kidney stones are tiny crystals of calcium or magnesium that block the narrow sections of the excretory system. which symptoms would a person with kidney stones experience? a. inability to store urine; pain in the bladder b. inability to store urine; pain in the urethra c. reduced urine flow; pain in the bladder d. reduced urine flow; pain in the urethra