Question

The worlds fourth-longest river has large amounts of yellow silt that is deposited along its course.name this river

Answer 1

I think that the question asks for Huang He, or the Yellow river (Huang is "yellow" and "he" is river.

It's the world's forth longest river (if we don't count other river's tributaries, which complicate the count a bit) and it does have a lot of silt!