What are primary and secondary ? How can wo foll the difference between them? 3. How primary and secondary sources to learn about the past?

Differentiate primary sources from secondary sources

Primary sources can be described as those sources that are closest to the origin of the information. ... Secondary sources often use generalizations, analysis, interpretation, and synthesis of primary sources. Examples of secondary sources include textbooks, articles, and reference books.

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."