Answer:
That statement is True
Explanation:
Primary sources is a source of information that directly created by the people who were involved in the past events.
For example, when we're studying civil war, Letters that directly written by lincoln or the Papers that were written by journalist who witnessed the war would be considered as a primary source.
Susan Solomon's article about climate change on the web of science was based on her direct involvement in the researches, which is why it's considered as a primary source.
Answer:Social facilitation
Explanation:Social facilitation is the tendency appearing in the individual that helps the particular person to perform better than earlier and well than the usual times in any certain field.
Social facilitation boost the mental energy of a person helps the person to perform well in the simple task .It also might lead to the worse performance in the task which are new to the person or has complexity. Bill also felt this emotion while playing the presence of his family.
macroeconomic appraches the study of economic from the viewpoint of consumers
<span>the answer is
systematics</span>
