The answer is b. a common currency
hope this helps ! :D
The trolleys have been reduced over the last decades, after their initial increase as a public transportation, when new and better ways were discovered/produced for transport, their decline has started.
The buses since their invention, had grown in number and became a very important part of every city's public transportation, and still are.
The rapid transit is the most recent one of the mentioned in here. It's popularity has grown, number increased, and is very practical because it is not causing traffic mess. It is very important transport asset nowadays and makes lives of millions of people much easier.
The humanist scholarship encouraged oceanic exploration as due to the large-scale printing of books, people started gaining knowledge and setting out on oceanic expeditions in order to find new trade routes and satisfy their spirit of adventure.
The factors which motivated the Portuguese, particularly Prince Henry the Navigator, to explore west Africa were to extract and export gold and other valuables from which Portugal could benefit. The other reason was that Prince Henry was fascinated about west Africa as the Portuguese had little knowledge about it.
With the development of the printing press, books were available more easily and were even cheaper. This help in the widespread of new ideas and thoughts in society. People built sturdier ships with this knowledge and set out to explore new oceanic routes to procure spices and other goods at cheaper prices from different parts of the world.
To learn more about humanist here
brainly.com/question/11105345
#SPJ4
Weather. This includes factors like temperature, humidity, wind speed, etc.
Nepal. Bhutan Thailand, there are many more.
