What is more Dangerous Horseback riding or Surfing?

What are the two ways in which you can identify forms? cones and spheres are examples of (dark/artifical/geometric) forms, whereas mountains and trees are (natural/organic/light) forms.

What is the title of the work below? a. the old sacristy b. the new sacristy c. tomb of popes d. pieta

Iconography refers to meaning of the symbols and images in art. iconology is the study of imagery in terms of broader cultural and artistic content in art.