Answer:
B, A or D
Explanation:
Examples of secondary sources include: journal articles that comment on or analyse research. textbooks. dictionaries and encyclopaedias.
Answer:
the demand for goods increased as goods became cheaper to produce
Explanation:
Answer:
1868 years
Explanation:
The Persians lost against the Greeks in 479 BCE (which stands for Before Common Era or Before Christ). On the other hand, the Serbs were conquered by the Turks in 1389 CE (Common, modern Era).
Answer:
1958
Explanation:
Originally known as the Advanced Research Projects Agency (ARPA), the agency was created in February 7, 1958 by President Dwight D. Eisenhower in response to the Soviet launching of Sputnik 1 in 1957.
