How are eras different from decades?

Question

Decades are longer than eras.
Decades are more exciting than eras.
Decades are 10 years, while eras do not have set periods of time.
Decades are marked by new developments, while eras are based on time.

Answer 1

The correct distinction is that decades are 10 years, while eras do not have set periods of time.

A decade specifically refers to a period of ten years, often used to categorize culture, fashion, events, and more. In contrast, an era is a broader term that can refer to a significant period in history or in a certain context, and it does not have a fixed duration. Eras can span various lengths of time, ranging from a few years to several decades or even centuries, depending on the historical significance or context in which they are defined.