Answer:
A. Airplane
Explanation:
Around 1918, Air delivery, became the new mode of transportation for mail, as it rendered railroad services unnecessary. During this period, the Post Office moved on the airplane bandwagon early, there by, offering air mail service in the early 1900s.
Hence, the 1900's technological invention which allowed the U.S. postal service to deliver the mail considerably faster than previous methods is AIRPLANE.
<span>Hello! During the Spain Golden Age, which was between the 16th and 17th centuries, the empire was based upon the mutual support of the Catholic church. Besides that, it's true to say that Spain became one of the greatest commercial power in Europe, with a centralized government, but it's wrong to say that the country turns on in a industrial potency, once there is no industry in early 17th. So, the incorrect one is: Spain became a leading commercial and industrial power in Europe. Hugs!</span>
Can you provide a picture ?
In the presidential election process, <span>unit rule means as the rule of majority vote of a body to a political convention will be recorded as unanimous and this one support will be given to one candidate they may have chosen.</span>
