There is a lot of proofs that earth is a sphere. In my opinion you can watch the Moon and the Sun. They are spheres also. When it comes to emotions of the Moon the shadow of earth is sphere.
Just because the Sun and Moon appear to be circular or round in shape, does not mean that they are spherical.
Also, the Sun and Moon appear to be the same size, because they ARE they same size.
To cover the truth, they lie and tell us that the Sun is 400 times bigger than the moon, and they look the same size because the Sun is 400 times further away from Earth than the Moon.
Yeah right.
The truth is that the Sun is not 93 million miles away, and the Moon is not 240,000 miles away. They are both CLOSE.
https://www.youtube.com/results?search_query=sun+moon+%22flat+earth%22
See also:
https://www.youtube.com/results?search_query=%22flat+earth%22