You pronounce it amond without the l sounding. And yes the l is silent
What it means to be an informed and educated citizen is to know what is going on in your country and know what major event may or are aspiring around you .And to be well educated you have know at least want to know whats going on around you like even if its just watching the news for five minites or reading a world history book that will help you in this matter
Talk about how many have come through the years.
For example: Many immigrants have entered (whatever country, I'd assume America but you can fill in the blamk) but by far the most that have entered would be (number here) and (this percent) have stayed and.....
And if not that, maybe talk about how their cultures have affected the world or another country because of immigration. I hope that helps!