The railroads help transfer people and goods across the United States lot faster than on horse. Also helped with mailing.
Answer:
During the Mediaeval period, a large number of foreign travellers such as Ibn Battutah, Marco Polo, Alberuni etc visited India and have left an account of their observations.It is through these accounts that we have come to know about India in that period. Such accounts by foreign travellers are known as travelogues.
Answer:
Lacks random assignment
Explanation:
the researcher may not Be able to establish valid causal relationships as the study lacks random assignment in that participants do not get equal opportunity of being assigned to groups. Random assignment means the researcher applies chance in assigning participants to groups such that the study is not biased and causal relationships are not affected. For example if a participant does not get to choose his group, the researcher randomly flips a coin to assign him to a group and so there is an uncorrupted result in findings
Answer:
a. It contains a "Bill of Rights."
Explanation:
