What factors contributed to the escalation of the Cold War? Which primary and secondary sources are relevant and could be used to answer the question? Check all that apply. 1. an encyclopedia entry on the Cold War
2. an article about Cold War written by an expert
3. a movie about Cold War–era chess
4. a book titled Soviet Fashion Trends
5. photographs from the Cold War era

Correct answers are 1. An encyclopedia entry on the Cold War, 2. An article about Cold War written by an expert, and 5. Photographs from the Cold War era.

Explanation

Primary sources are documents or materials created during the period studied or that a participant created at a later date in the events being studied, such as a childhood memory.

They are original documents and reflect the individual point of view of a participant or observer.

Primary sources represent direct, uninterpreted records of the topic of your research study. Audio recordings, diaries, interviews, newspaper articles from the time studied, official documents, letters, photographs, treaties, laws, constitution, speeches, among others, are considered as primary sources.

On the other hand, a secondary source is usually an academic book, a magazine article, or a digital or printed document created by someone who did not directly experience or participate in the events studied. Secondary sources are not evidence, but rather provide an interpretation, analysis, or commentary derived from the content of materials from primary sources and/or other secondary sources. Secondary sources are encyclopedias, textbooks, biographical works, among others.

According to the above, the most appropriate primary and secondary sources to answer the question "What factors contributed to the escalation of the Cold War?" They are "1. An encyclopedia entry on the Cold War, 2. An article about Cold War written by an expert, and 5. Photographs from the Cold War era", because they are sources that provide precise information on the events that occurred during the Cold War and have a fairly accurate level of information precision.

1,2,5

Explanation:

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