Which of the following were advantages of the Huang He valley to early settlers? Check all that are true. The Huang He provided water for farming and a route for trading. The mountains and deserts bordering the Huang He valley prevented other civilizations from bringing their technologies and ideas. The flooding of the Huang He covered the valley with loess, making the soil more fertile. The Huang He regularly flooded, keeping crops well-watered and deterring invaders.