This is about the Topology on complex surface.

For #1, I want a drawn diagram with an explanation.

For #2, please explanation thorowly

Create a 2-complex that is not orientable. Explain why the complex is non-orientable. You are given the planar diagram of a surface called the projective plane, denoted by P2. One common way to think about this surface is considering all lines passing through the origin in R3. a a) Show that P2 is not orientable. b) Prove that p2 can be obtained from a sphere $2 by removing a disk and gluing a Mbius band in its place. Create a 2-complex that is not orientable. Explain why the complex is non-orientable. You are given the planar diagram of a surface called the projective plane, denoted by P2. One common way to think about this surface is considering all lines passing through the origin in R3. a a) Show that P2 is not orientable. b) Prove that p2 can be obtained from a sphere $2 by removing a disk and gluing a Mbius band in its place