Answer:
Let's take a look at the modern day headphones we have now. They're airpods. Wirless. It used to be connected to wires. And those earbuds used to be headphones. And those headphones used to be heavy speakers.
Explanation:
How did they evolve with growth in technology? Back in the early 1890s, headphones were single-sided, heavy speakers that people would hold on to an ear to communicate. This later evolved into something known as an 'Electrophone'. It was a system consisting of a stethoscope-shaped headphone connected to a switchboard.
We started using them in the wars to communicate with the troops on the ground and now we use them to stay focused, to disappear and to give ourselves some time away from the stressful world we live in.
Answer:
It's practiced in sparsely populated regions because of less things being in the way. This way, they can use irrigation more efficiently.
The answer that is being described above is SPAIN. This is the country that sent explorers so they can take control of the lands in the south and west of Mississippi river because of the gold deposits, as well as farming and ranching. Hope this answers your question.