The development of barbed wire in the 1870s changed the cattle ranching industry by allowing the cattle ranching owners that have large ranches to enclose their own territory in which allowed them from eliminating the possible competition in regards of the resources. It is because the barbed wire in the 1870s serves as an important tool that ranchers could use as a way of protecting their animals in the barn from predators capable of killing their animals and from also preventing other people from trespassing without their permission.
To become a U.S. citizen, you need to be at least 18 years. You should have lived in the U.S. for at least 5 years.(these steps are for naturalization). So the answer is probably D. Hope i helped.
Answer:
1. It caused economic hardship in the empire
2. Magellan sailed east around Africa to reach the Pacific Ocean.
3. Europe
4. astrolabe
The answer is They were carried on boats down the rivers.
Hope I helped!
Yes it did encourage people to join the army