Watch a sunset
Pick a nice spot from which you can watch a sunset (we'll call this point A). Ideally, you'd have a clear horizon in front of you, and behind you would be some sort of elevated point that you can quickly access (a hill, a building with at least two floors, or perhaps the aforementioned tree; we'll call this point B).

Watch the sunset from point A, and once the sun is out of sight, hurry on over to point B. With the added elevation provided by point B, you should be able to see the sun above the horizon. If Earth were flat, the sun would not be visible at any elevation once it had set. Because Earth is round, the sun will come back into your line of sight.

explain why i can see the sun over the horizon by increasing my elevation if the earth is "flat"

that has nothing to do why you can still see the horizon by increasing elevation

what jet in 71 goes 59000 ft

why only 18 and not 20?

get that retirement boi

@A Search for Roche's Rifle F18B is not a jet in existence, even if you were talking about an F18 the max height is 50000 ft

youve never been anywhere near 59000 ft nor can you figure out what jet youve even flown

which jet?

f18b is not a jet

nah b

its name is not F18B

its called an F-18

wTf did i just read

that is a stupid theory

https://www.youtube.com/watch?v=bVNTNeNMH8Q

says hes chill but seems pretty heated

oof gonna get banned cause you cant prove him wrong

damn

https://www.youtube.com/watch?v=Yoqc1Zt0sVk

The earth caused Chernobyl nuff said