You'd be shooting around 40-50 degrees for a 250yd shot. You want the best ballistic trajectory you can without sacrificing distance. Arrows, like bullets, travel in an arc so while they wouldn't shoot directly up they would shoot at a fairly high angle for anything past 50 yds or so.

Depends how far away the target is. Done some long range shooting before and sometimes you really do shoot up in the air because unless you aim up at 30-45° the arrow isn't going to go far enough.

So, it wpuld be a drizzle of arrows then