Question

What two technological advancements led to New York City being able to produce taller buildings in order to service the growing population?

Answer 1

There are several technological advancements that led to New York City being able to produce taller buildings in order to service the growing population, since you provide no options, you can put :

- Fireproofed iron framed structure and foundation
- Elevator
- Electric Lighting
- Lightning Rod/Conductor

Hope this helps