How do observations of meteor showers reveal one of the sources of meteoroids?

Since they happen on the same date every year, they occur at the same point in Earth's orbit. If that point can be connected to a previous comet's crossing of Earth's orbit, it tells us those meteors must be due to comet ejection.

Brazzaville and kinshasha, luanda,librevilleand and monrovia.

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;