Question

1. what field did leonardo begin working in centuries before others with a) bronze casting b) urban development c) flight d) military engineering

Explanation:

Leonardo da Vinci is renowned for his early sketches and conceptualizations of flying machines, such as ornithopters. These designs were centuries ahead of the actual development of flight technology. Bronze casting was a common practice in his time. Urban development concepts he had (like city planning ideas) weren't as uniquely "centuries - ahead" in the same revolutionary sense as flight. Military engineering concepts (e.g., war machines) also had some predecessors in a more general sense compared to the novelty of flight concepts.

Answer:

C. Flight