I didn't understand the question
The catholic church believes the pope to be infallible in matters of doctrine. orthodox believers reject the infallibility of the pope and consider their own patriarchs and thus they subject to error.
It looks like you should draw where the moon is orbiting the earth and wheee the earth is relative to the sun during that tide.
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term. Hope this answered your question