need these answered with detail please.
1) Why does socrates claim that the sensible world of appearances is not the real world? relate your answer to the allegory of the cave and to the image of the divided line.
2) In the second meditation, how does Descartes justify the necessity of his existence even if an evil demon who is always deceiving him also exists? What kind of thing does he conclude he is and what is he capable of doing by virtue of his existence as such a thing?
3) Describe in Popperâ€™s terms how Einsteinâ€™s gravitational theory differs from Freudâ€™s psychoanalysis. Why does Popper argue that only the former is properly scientific?
4) Outline the proof of existence of God provided by Descartes in The Third Meditation. On what principleâ€”â€œevident by the natural light of reason,â€ as Descartes writes â€“ is it based?