a. He drew a horizon line to show where the sky and earth appear to meet.
Answer:
do you mean quiz and this is not a answerable question.
Explanation:
Corbel dome: arch like construction method to span a space or void in a structure such as a entryway.
Tholos: Beehive like tomb; Burial structure made out of mud bricks and stones.
Rotunda: Round building or dome.