Final answer:
The features of money bills that help distinguish genuine money from counterfeit money include watermarks, security threads, and color-shifting ink.
Step-by-step explanation:
There are several features of money bills that are used to distinguish genuine money from counterfeit money:
Watermarks: Genuine money bills often have watermarks, which are faint designs or images that can be seen when the bill is held up to the light. These watermarks are difficult to replicate and serve as a security feature.
Security Thread: Many money bills have a security thread embedded in the paper. This thread is visible when the bill is held up to the light and often contains text or images that are difficult to reproduce.
Color-Shifting Ink: Some money bills use ink that changes color when viewed from different angles. This feature makes it difficult for counterfeiters to replicate the exact colors used on genuine bills.