Answer:
The independent variables are the level of tiredness and the number of hours slept by the volunteers.
Explanation:
Independent variables are those that act on the dependent variables influencing a result, which can be observed by the researcher. In summary, the independent variable is one that can influence. In the case of the question above, we can see that the number of hours slept by the volunteers influenced the level of tiredness of the volunteers. These two variables were able to influence the level of proactivity and performance of the volunteers in their activities, which allows us to determine that these two variables are the independent variables of the study.
The three estates, the way French society was divided in the late 18th century. Clergy, Nobility, and Commoners
Answer:
Presence of inorganic molecules
Explanation:
This prediction is often debated as a part of origins of life.
Inorganic molecules do not contain carbon and cannot be considered as biological organism. One theory predicted that before the first life form exist, early atmosphere is covered in inorganic molecules. Over time, the interaction with inorganic molecules and lightning might cause a reaction that resulted in the formation of building blocks amino acids and nucleotide, which eventually evolved into living organism.