Historians.
Historians are people that study, describe, and explain the past or the history as it is otherwise referred to as.
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Answer:
skin damage,cancer,global warming.
Explanation:
Both waves have a bad effect to us.
Answer: replacing held with clutched
Answer:
degree of freedom is 2
Explanation:
We have here,
Physical activity classified as "positive attitude" or "negative attitude"
General activity level was classified as active, mildly active, and inactive.
Degree of freedom (Row-1)(Column -1) = (2-1)(3-1)=2
Therefore degree of freedom is 2
