Respuesta :
I do not believe the earth is flat, if you look closely, the clues are everywhere. There are tall buildings, mountains, and pyramids. If people want to climb very tall mountains, they take oxygen with them. You have to do that because it's tall altitude. You wouldn't need to do that if the earth was flat because if it was there'd be oxygen everywhere all around us. As you go up, oxygen gets thinner, and thinner.
