Answer:
The elevator revolutionised the Vertical transportation and logistics. Prior to that, even though the usual transportation between places was developed mainly because of the advancements in the vehicle and naval transportation, moving things "up" and vertically was supper difficult. Mainly moving people.
The elevator allowed the development of the Skyscraper. Tall buildings that could house thousands of people and eventually that would become the symbol of America.
Explanation:
<span>Energy of electrons depends on light's frequency, not intensity.</span>
Answer:
Complementary angles aretwo angles that add up to a 90 degree angle. For example a 40 degree angle and a 50 degree angle are complementary because 40+50=90.
Answer:
b. Germany was able to fight a two-front war in Western and Eastern Europe.
Explanation:
Schema.
