海陸空

海 = 每 + 氵 : Due to the runaway greenhouse effect, the oceans have risen and the airplane has been flooded. To do his daily workout, Hamlet has to do a handstand on two water bottles and do his push-ups this way.

海 = 每 + 氵 : Due to the runaway greenhouse effect, the oceans have risen and the airplane has been flooded. To do his daily workout, Hamlet has to do a handstand on two water bottles and do his push-ups this way.

陆 = 击 + 阝 : Lenny Lemur (lu) is helping the pope (阝) to conquer earth from the space station's bathroom (Ø4). As they fly over the different continents (陆) they threaten them using their mortar (击).

空 = 工 + 穴 : Mnemonic symbol: an air conditioner

空 = 工 + 穴 : In front of the engine, Karl Koala found some very special cave paintings. Using steel beams he constructs a protective cover. He also installs air conditioning to make the best environment possible to preserve the cave paintings.