see how it curves a bit in the first image? see it's a globe. If the earth was flat as some individuals say, why does america have daylight while in china there is night?
And why does the moon, which is in fact a globe as well orbit earth. We've been on the moon and it constantly changes (full moon-new moon) so we know it spins around earth.
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And what about flight? Why do planes that depart from tokyo go to san fransisco through the pacific?
And seasons? Climate? all these occur because the earth has a tilted axis and orbits the sun. Ever looked at a satellite image? I see no barrier of ice.... (it couldn't exist even if the earth was flat because of seasons). Answer this post, please.