Do you know what cause the level of the seas

Do you know what cause the level of the seas This will cause the level of seas to rise and drown cities a 同义句改写:This will cause the level of seas to rise. do you know what（ ）（ cause）the traffic accident what cause the fire?what do you see just now? What else do you know of the water? do you know what is the meaning of it? --Do you know what the population of Shanghai is?--____. It cause the level of the ocean to rise. Do you have stress in your life?what are the major cause of What do you think ______(cause) the traffic accidents what are the seven seas?