A decrease in predators
Lack of available mates after the flood
An increase in available living space
I believe the answer is Post and lintel construction. (Columns).
I don’t think domes were invented.
Flying buttresses were invented for the Notre Dame Cathedral in France
Towers and spires are not likely.
I hope this helps!
I think the drawing is an angel
<span>H</span>is<span> style changed, </span>his<span> use of materials drifted away from those of drawing to those of </span>painting<span>.</span>