Enforced airport security !!! Such as more stuff
Because the twentieth century's events demonstrated communism to be a catastrophic failure, twentieth century philosophy rejected the value of history.
<h3>Why was the 20th century such an important era in world history?</h3>
The Spanish flu pandemic, World Wars I and II, nuclear weapons, nuclear power, and space exploration, nationalism and decolonization, scientific achievements, and the Cold War and post-Cold War conflicts dominated the 20th century and contributed to the formation of the modern era.
The First World War and the start of the Second World War in 1914 and 1939, respectively, are examples of the twentieth century's severe brutality.
To know more about importance of history visit :
brainly.com/question/12118238
#SPJ4
Answer:
The several kinds of penicillin synthesized by various species of the mold Penicillium may be divided into two classes: the naturally occurring penicillins (those formed during the process of mold fermentation) and the semisynthetic penicillins (those in which the structure of a chemical substance—6-aminopenicillanic ...
they were dependent on fertile land.
Explanation:
hope this helps :)
An increased interest in different cultures
