2. **How do central banks decide the denominations and design elements (such as portraits, imagery, and color schemes) featured on a banknote?
**What are the key security features commonly used in banknotes to prevent counterfeiting, and how do they work?
What are the economic implications of transitioning from paper-based banknotes to polymer-based banknotes?
How do central banks decide on the imagery and themes depicted on a country's banknotes?
What are the environmental impacts of producing and disposing of banknotes, and how are central banks addressing these concerns?
How has the design and material of banknotes evolved over the years for major currencies?
What security features are commonly used in banknotes to prevent counterfeiting?
How do changes in technology and digital currencies impact the future use and production of physical banknotes?
What is the history of banknotes, and how have their designs and uses evolved over time?
How do central banks decide on the designs and denominations of banknotes, and what factors influence these decisions?
