Answer:the answer is D.
Explanation: Documentaries are examples of primary sources.
Answer: Defiance Campaign 1952. The post-1948 period saw the African National Congress (ANC) abandoning its traditional reliance on tactics of moderation such as petitions and deputations. In December 1949, with the support of the ANC Youth League, a new leadership came to power in the ANC. Walter Sisulu was elected secretary-general and a number of Youth .
Explanation:
Answer: B. A writing system
Explanation: The Sumerians are the first known world civilization, which emerged on the land of Mesopotamia. In addition to the Sumerians, there were other Mesopotamian civilizations after, but one of the most important inventions or achievements that had an impact on the development of later civilizations was the writing system. It can be said that this invention is of great importance in general. According to some archaeological finds, the oldest Sumerian writing system on clay tablets dates back to the 8,000 years BC. To write on clay tablets, a Sumerian cuneiform was used, originating from pictographs and some other symbols used to display trade goods. The cuneiform was created from the need for trade because it represented a system of writing using wedge-shaped symbols, which were simpler than image symbols.
What is your question this isnt a question
Answer:
electromagnetic radiation
Explanation:
In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The absorbed energy of the EM waves is called a photon, and represents the quanta of light.
