I haven’t learnt this, but the encyclopedia says it increases in national income so i assume it’s the first one because they’re both about income but i’m not sure so i’m sorry if its wrong ;-;
Answer:
yeah I'm gonna say no on that
It varies from year to years, but I would say about 6 percent. A very small amount 4-6% is passed each year.
Convex
They take light from all points and converge them into one, defined point. This gives it the ability to enlarge an image.
I hope this helps! :)