Answer:
Athenian democracy developed around the 6th century BC in the Greek city-state (known as a polis) of Athens, comprising the city of Athens and the surrounding territory of Attica. Athenian democracy is often described as the first known democracy in the world. Other Greek cities set up democracies, most following the Athenian model, but none are as well documented as Athens' democracy.
Explanation:
Answer:
Maybe cultural. I am not sure though
Oil is the anwser because it is man made and natural and humans will need it a lot in the future
Answer:
Lead
Explanation:
The economic success of United states was in no way imparted by the mineral lead.
In fact, the mineral is considered a toxic pollutant and has been banned. The United States like most countries are not interested in lead as a viable economic option.
It was once used in paints because they produce a highly durable mix.
Also, it was an additive in gasoline. This has been banned.