Amixture is -
a. a chemical combination of two or more different materials.
b. a physical combination of two or more different materials.
c. a precipitate and its solution.
d. a single element

no but i do not usually comment or use my voice that much when it comes to social media

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be