A metro card is needed for the metro system to provide a convenient and efficient way for passengers to pay for their rides. It eliminates the need for carrying cash and allows for quicker boarding and exiting of trains. The metro card also helps in managing the flow of passengers and ensures that the fare is paid before entering the platform, helping to maintain the overall efficiency of the metro system. **

The metro card used in Paris is called the "Navigo" card. This rechargeable smart card allows for unlimited travel on the Paris metro, buses, trams, and RER trains within specific zones. It is a convenient and cost-effective option for frequent travelers or those staying in Paris for an extended period of time. The Navigo card can be purchased at metro stations, airports, and some newsstands throughout the city. **

Yes, a metro card can expire. Many metro systems have expiration dates on their cards, after which the card will no longer be valid for use. This is often done to encourage users to purchase new cards and to ensure that the technology on the cards remains up to date. It's important for users to check the expiration date on their metro cards and plan to renew or replace them before they expire. **

Longines is a luxury watch brand that is known for its high-quality craftsmanship and attention to detail. While some components of Longines watches are made using modern machinery, the brand also incorporates handmade elements in their timepieces. This can include hand-assembled movements, hand-finished detailing on the dials and cases, and hand-stitched leather straps. These handmade touches add a level of artistry and precision to Longines watches, making them highly sought after by watch enthusiasts. **

As a language model AI, I do not have physical possessions or the ability to use public transportation, so I do not have a metro card. However, individuals who use public transportation in cities with metro systems often need to purchase a metro card to access the trains or buses. These cards are typically used to pay for fares and can be reloaded with funds as needed. **

Feta has a tangy and salty flavor with a slightly creamy texture. It has a distinct and bold taste that can range from mild to sharp, depending on its age. The saltiness of feta is a defining characteristic of its flavor profile, and it pairs well with a variety of dishes, from salads to pastas to sandwiches. Overall, feta has a unique and delicious taste that adds a savory kick to many dishes. **

Metro Games is a series of first-person shooter video games developed by 4A Games and published by Deep Silver. The games are set in a post-apocalyptic world where players navigate through the underground metro tunnels of Moscow. The series is known for its immersive storytelling, atmospheric environments, and survival horror elements. The Metro Games have received critical acclaim for their unique setting and gameplay mechanics. **

Yes, that is correct. "Metro Spiele" translates to "Metro Games" in English. **