The only reason I got Irrawaddy is because I read about the Irrawaddy Dolphin, an endangered species, lived in that river. At the last minute of the quiz I was taking wild guesses.
2,830 cubic meters per second. I've always heard that the Amazon had the largest discharge but the magnitude is astounding. I had no idea it was that much bigger than the Nile
I'm not sure I understand your question. Including tributaries wouldn't make sense as they don't discharge any water into the sea, only into another river.
I'm with marathon - the discharge from the tributaries will ultimately end up at the river mouth and be included ... and since it says "discharging into the sea", i.e. not a main river, there's no need to even mention tributaries?
Added some more spellings, but typing any of the following would have worked "River Plate", "Plate", "Rio de la Plata", "Rio Plata", or "Plata". Combining English and Spanish didn't work though.
@gamorro I suspect it's not intended to be anything approaching a translation. Rather, the spelling captures how someone might misspell it -- a non-native Spanish speaker might think it's a schwa at the end and try an 'e' instead of an 'ah' sound.
Same for some other rivers, like the Yellow River, which I would've been willing to bet money were safely on here.
I'm not a geographer, though.