I think the answer would be A. Would be easier to tell if I saw the passage
Answer:
In the early 1800s, America underwent a huge change in transportation. State governments and private investors began to build canals, railroads, steamboats, and turnpikes to facilitate travel by land and water. Between 1815 and 1840, these innovations spread like wildfire. Miles of canals and railroads were built as well as numerous turnpikes and steamboats. This change in transportation would help the future generation of America and at the same time, it would make the country more productive and make traveling much easier.
Explanation:
Answer:
Life for people in Europe during the Middle Ages was highly stratified because of the feudal system. There was very little social mobility and it is called The Dark Ages because culturally and intellectually there were fewer contributions than had been made by ancient Greece and Rome.
Explanation:
The Middle Ages is a term that describes the period from the fall of the Western Roman Empire in the year 476 until about 1450. This period of time is also called The Dark Ages, because some perceive Europe as having been plunged into darkness when the Roman Empire fell. The Middle Ages supposedly lacked scientific and cultural advancement, especially when compared to the accomplishments of ancient Greece and Rome. The feudal system made it difficult for there to be social mobility and this added to a sense of bleakness about this time for the common person. However, in the High Middle Ages after the year 1000 there was a surge in population in Europe, suggesting that there was more prosperity and better health and an improved supply of food. The Black Death that swept through Europe from 1346-53 impacted this growth and views of medieval city life.
An experiment is a research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process.
<h3>What is an Experiment?</h3>
An Experiment is a test or procedure or an operation that is carried out controlled conditions so as to discover a purpose or something that is unknown so as to establish an hypothesis of the known test to.
Experiment can be carried out in a laboratory in order to establish a law or even hypothesis.
It is a form of research methods.
Therefore, An experiment is a research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process.
Learn more about Experiment from the link. below.
brainly.com/question/25303029