黄河，为什么是黄色的？

The Yellow River is a mother river of China. 黄河是中国的母亲河。 It runs through the Loess Plateau. 它流过黄土高原。 Loess is soft yellow dust soil. 黄土是一种软软的黄色泥土。 The river picks up lots of that yellow soil. 河水卷走大量黄土。 The water turns muddy and yellow. 水就变得又浑又黄。 That is why it is called the Yellow River. 所以人们叫它黄河。