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.
<span>Let's go through the options:
1. they are all at the same elevation.
- this is not true, as for example London's elevation is 35 meters, and Vienna's 135
2. they are all capital cities.
-false, Cologne is not a capital!
3. they are all located on some of Europe's major rivers.
This is true! for example, London - Thames, Vienna - Danube and Warsaw - Vistula
4. all of these cities are at the center of a metropolitan area of 10 to 20 million people.
Actually none of them are, even the biggest one (London) has "only" 8 million people
5. they are all located along the southern limit of Pleistocene glaciation?
No, for example Vienna isn't! The Pleistocene glaciation was not the most extreme glaciations and it reached the north of Europe, but not the South or Central Europe</span>
Answer: observation about what actually work
Explanation:
Observers may have the good fortune to obtain useful perceptual evidence simply by noticing what's going on around them, but in many cases they must arrange and manipulate things to produce informative perceptible results. In either case, observation sentences describe perceptions or things perceived.
Answer:
C. Creating a worldwide free trade agreement
Explanation:
