earth is concave so your all wrong... period...
This question applies to you too. What would you expect to see on a round Earth that we do not see in reality?
I ALREADY ANSWERED THIS YOU IDIOT BUT I WILL NOT ANSWER IT AGAIN CAUSE YOUR LAZY!!!!
The round earth model accounts for EVERYTHING that we see/experience on a daily basis.
1/ The sun rising in the east and setting in the west.
2/ The seasons
3/ The spinning of weather systems in a direction dependant on which hemisphere you're in
4/ Solar and lunar eclipses
5/ Ocean tides
6/ Periods of 24 hour light/darkness in the Arctic/Antarctic
7/ Phases of the moon
8/ Observed curvature of the earth form space
9/ etc
The flat earth model can account for NONE of the above, absolutely NONE.
The flat earth model can account for 2 , 4, 5 and 8 
Does it though? Does it explain tides? Or observed curvature?
Seasons = Sun that orbits at different distances of equator.
Eclipses = An unknown planet that orbits lower than the Sun and the Moon.
Tides = Massive moon attraction (if gravitation is considered to be true).
24 hour sun = Perfectly explainable in Arctic, and nobody can reach Antarctic (lol).
Phases of the moon = Same explanation than for round earth
Observed curvature = Conspiracy.
However the two others can not be explained by FET.
Only the first actually works. An unknown planet? WTF? Is this why when a solar eclipse happens, nobody in the world can actually see the moon somewhere else? Is this why when whenever a lunar eclipse happens, the sun is pretty much on the opposite side of the Earth? Is this why that planet is invisible? What? It makes no sense!
The third one assumes gravity works. Great. Because that destroys the flat earth "theory".
The fourth one is dumb as fuck and blatantly obvious that it is wrong.
How does it account for the phases of the moon? The moon is a flat disk they say!
I don't even have to say anything about the last one.