(Pro) Spherical vs flat Earth (Con)

Round two argumentsI reject my opponent's definitions. No explanation is needed due to the round one setup protocol. "Use common definitions unless otherwise expressed and agreed upon. " StupidapeNevertheless, I did explain why in the comments. I. MoonWe have evidence for a long time the Earth is spherical in shape. [0] The shadow on the moon during a lunar eclipse shows Earth's shadow, as round. The moon is round, thus the Earth is round.Due to the rotations of the moon and Earth, we can see different black spots on the moon, showing that the moon is not only round but spherical and thus the Earth is also spherical."The largest dark spot on the moon, known as the Ocean of Storms, may be a scar from a giant cosmic impact that created a magma sea more than a thousand miles wide and several hundred miles deep, researchers say." [1]II. Other celestial bodies are spherical in shapeIt is common knowledge that most other heavenly bodies are spherical in shape. The sun, moon, other planets, asteroids, and comets. Therefore, it is reasonable to assume the Earth is spherical in shape also. This provides indirect supporting evidence that the Earth is spherical in shape. III. Ships and the horizonShips on the horizon appear to emerge from the sea. Showing the curvature of the Earth and thus spherical."If you stand on the seashore and watch a ship sailing away, it will gradually disappear from view. But the reason cannot be the distance: if a hill or tower are nearby, and you climb to the top after the ship has completely disappeared, it becomes visible again. Furthermore, if on the shore you watch carefully the way the ship disappears from view, you will notice that the hull vanishes first, while the masts and sails (or the bridge and smokestack) disappear last. It is as if the ship was dropping behind a hill, which in a way is exactly the case, the "hill" being the curve of the Earth's surface. " [2]IV. Magellan's voyageMagellan circumvented the globe, thus proving the world can't possibly be flat in those directions. Note, it might be possible for the Earth to still be flat at the North and South poles. This provides supporting evidence by limiting the possibilities where the Earth could be flat, and proving the Earth must be round from West to East, despite failing to prove round from North to South. V. Planes circumventing the globeMany planes have circumvented the globe. Proving the globe must be round in those directions. This provides additional supporting evidence for the previous statement. Again, it is unknown whether any planes have circumvented the globe from North to South due to the extremely harsh climate of the south pole. VI. Photos from spacePhotos from space illustrate the Earth is spherical in shape. [3] VII. AstronautsAstronauts have viewed Earth from space and the moon and come back to tell the tale. VIII. Rotation of the EarthThe reason the Earth is not a perfect sphere is due to the spinning of the Earth. "Moreover, to even out Earth's imbalanced distribution of mass and stabilize its spin, "the entire surface of the Earth will rotate and try to redistribute mass along the equator, a process called true polar wander," Meert says." [4]Thus the Earth cannot be flat. Even if some event caused the Earth to become flat, the Earth would revert into roughly a sphere. IX. Formation of the EarthHere is one scientific theory of how the Earth was formed. " The core accretion modelApproximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula.With the rise of the sun, the remaining material began to clump up. Small particles drew together, bound by the force of gravity, into larger particles. The solar wind swept away lighter elements, such as hydrogen and helium, from the closer regions, leaving only heavy, rocky materials to create smaller terrestrial worlds like Earth. But farther away, the solar winds had less impact on lighter elements, allowing them to coalesce into gas giants. In this way, asteroids, comets, planets, and moons were created.Earth's rocky core formed first, with heavy elements colliding and binding together. Dense material sank to the center, while the lighter material created the crust. The planet's magnetic field probably formed around this time. Gravity captured some of the gases that made up the planet's early atmosphere. Early in its evolution, Earth suffered an impact by a large body that catapulted pieces of the young planet's mantle into space. Gravity caused many of these pieces to draw together and form the moon, which took up orbit around its creator." [5]The Earth was formed spherical and the rotations of the Earth keep the Earth spherical in shape. Despite, there being multiple theories, each theory supports the idea of a spherical Earth, thus to prove a flat Earth my opponent would have to at the least disprove all the scientific theories on how the Earth was formed. X. ConclusionsI have proven in multiple ways the Earth is round and spherical in shape. A weak argument could be made for the Earth being a disc in shape and an extremely weak argument could be made for the Earth being rectangular or square in shape. The rectangular or square in shape is defeated by the shadow of the moon and Greek ships hiding behind the Earth's curvature alone. Proving the Earth is a sphere as opposed to a disc is more difficult. Yet, due to the rotations of the moon and Earth we can see the dark spots on the moon at different angles showing the Earth is spherical as opposed to a disc. The other celestial bodies being spherical in shape combined with gravity rotating these celestial bodies into spheres proves the Earth is spherical. The photographs, astronauts, Magellan's voyage, and aircraft circumventing the globe limit where the Earth could be flat to only a few locations, the north and south pole. My opponent would have to then explain why the Earth is flat in these locations and not others, as well as proving the Earth is flat at the two poles.Finally, I expect my opponent to use a faith based argument at some point. The Koran is the Islamic religion's version of the Holy Bible. The Koran clearly states the Earth is spherical in shape. Therefore, my opponent would have to prove his/her faith based argument is superior to that of the Koran. " Allah Almighty in one Word said that He made the earth as an egg. We all know today that earth is spherical and science did confirm that the earth is indeed egg-shaped." [6]Thanks for debating. Sources0. http://starchild.gsfc.nasa.gov...1. http://www.space.com...2. http://www-istp.gsfc.nasa.gov...3. https://images.duckduckgo.com...4. http://www.scientificamerican.com...5. http://www.space.com...6. http://www.answering-christianity.com...