I'm having trouble shading hair... I don't get it.

What comprises a list of main points and sub-points of a topic to include in a presentation? a(n) is a list of main points and sub-points of a topic to include in a presentation.

Need some ! asap i need to figure out 3 major changes in bridges over time and why these changes to adapt to both improvements in technology and changing social links would also alot.

Artworks made to be used in a ritual context often have what kind of meanings in addition to their appearance and visual impact?