Why is the huang he considered to be a very dangerous river?

Huang He considered being a very dangerous river due to the adverse effects it causes during flood.

The Yellow River is known as the Huang He in China. It is the mother stream for all the Chinese individuals. Huang He River is the second longest in China after the Yangtze River. A progression of floods crushed China in 1887, 1931, and 1938. They were brought about by the flooding of Huang He River.  

These three floods murdered a huge number of individuals. They are viewed as the three deadliest floods in history and among the most damaging cataclysmic events at any point recorded. The most damaging of these floods happened in August 1931, leaving 80 million individuals destitute and those murdered by the flood extend from 850,000 to 4 million, naming it the deadliest cataclysmic event in written history.

not completely sure but i think it’s many moons, smaller in size and a ring system.