Answer:
C. He was the first black president in the United States
Explanation:
The relationship between two variables is "positive when one variable increases and the other increases" and the relationship between two variables is "negative when one variable increases and the other decreases".
<u>Answer:</u> Option C
<u>Explanation:</u>
"Variables" are the characteristics or properties that change or could be changed and responsible for variations in results. A variable is any factor, trait, or condition which occurs in differing amounts or types, usually independent, dependent, and controlled are kinds of variables preferred in any stream.
"Positive correlation" occurs when two variables move in same direction, for an instance like when one variable increases and the other increase or when one variable decrease and the other decreases. While "negative correlation" take place when two variables move in different directions like when one variable increases and the other decreases or when one variable decreases and the other increases.
In my opinion, only item III is correct.
The development of agricultural technologies and the domestication of animals gave the human being the capacity to guarantee food security, the basis for the development of the human species and its entire development. In this sense, man began to direct his attention to the development of productive technologies that culminated in what today is the capitalist system. That is, more wealth was generated.
Development has also brought greater complexity to social relations. New social classes emerged, religious beliefs became more complex, as did culture. The issue of protection is relative<u>,</u> the human being is sensitive and needs to be protected, being completely dependent in childhood. However, if we look from the perspective of the improvements brought about by the agricultural revolution, the individual need for protection has diminished as food security and the institutionalization of life in society has evolved.
