Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% Image Credit Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80% more than 80 percent water Our lungs are 90% water, and our blood 80% Our lungs are 90% water, and our blood 80%