By accurately placing highlights and shadows an artist can create the illusion of form. Chiaroscuro - An Italian word that means the arrangement of light and shadow. Today chiaroscuro is also called modeling or shading.
Answer:
The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. ... Aqueducts moved water through gravity alone, along a slight overall downward gradient within conduits of stone, brick, or concrete; the steeper the gradient, the faster the flow.
The correct answer would be C
