The ability to smelt metal led to which cultural innovation in early civilizations around the world

Advancements in architecture due to better-tools is to which the ability to smelt metal led as innovation in early civilizations around the world

Explanation:

although the legal justifications for the trials and their procedural innovations were controversial at the time, the nuremberg trials are now regarded as a milestone toward the establishment of a permanent international court, and an important precedent for dealing with later instances of genocide and other crimes

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.