Answer:
NFC technology
Explanation:
NFC stands for near-field communication , which consist of a set of protocols that allows two devices to exchange information.
In the examples above, the flow of information occurred from the phone (which contains the data regarding how much money you put in) and the terminal (which contains data regarding product price). By tapping the phone, the consumers initiate the exchange of information and the balance in the phone will be automatically deducted by the price in the terminal.
The most suitable word for Barcelona would be "enthusiastic". The word enthusiastic comes from the word itself which is "enthusiasm" that means a feeling of energetic interest in a particular subject or activity and a desire to be involved with it. For Barcelona, when you imagine the place, you ought to be interested in what's with the place and what does the place offer.
This term is "Guest workers" or in German "Gastarbeiter".
It was very widely used for the Turkish workers in the 1970s, but originally it applied rather to Italian, Spanish and Greek workers who came to Germany in 1950s and 1960s based on an agreement between the countries.
Russia
canada
United States of America
China