濃霧

浓 = 农 + 氵 : Nelson Newt (nu) is watering his monoculture (农) in the engine's kitchen ((e)ng2). He added a lot of fertilizer to the water in his water bottle (氵) and as he empties the bottle a thick (浓) fog with a strong (浓) smell is emerging from the liquid.

雾 = 务 + 雨 : Willy Walrus (wu) has a special task (务) to fulfill in the space station's bathroom (Ø4). With a vaporizer he is creating a lot of fog (雾) which will slowly form a cloud and result in rain (雨). Willy will collect the rain and vaporize it again. With this experiment he is doing an important contribution in understanding the world's climate system.