Historically, it has not been uncommon for successive ...

[crobinson2013]

Historically, it has not been uncommon for successive civilizations to build cities atop sites of former
  cities. Were these sites usually at sea level?

 
  Indicate by YES (Y) or NO (N).

Question 2

During building construction, contractors may bury wood or masonry rather than haul them away.
  Does this buried rubble help with drainage and root growth?

 
  Indicate by YES (Y) or NO (N).

[duke02]

Answer to Question 1

N

Answer to Question 2

N

[crobinson2013]

Thanks for the timely response, appreciate it

[bigsis44]

Excellent