Yes Fredric Douglas's account is a trustworthy source for knowing about John Brown's intentions.
<h3>Who was Fredrick Douglas?</h3>
This man was an abolitionist, a speaker and a publisher in the United States.
He led the march to end slavery during the civil war in the country and before it.
His account is trustworthy due to the fact that he had personal relations with John Brown.
Read more on Fredrick Douglas here: brainly.com/question/13896424
B. separated twins tend to have the small behavioural characteristic, regardless of the environment.
The answer to this question is Expert testimony
Expert testimony refers to the testimony that is given by qualified individuals who dedicated their life within a specific field.
Other examples of an expert testimony would be quoting a world renowned programmer on the topic of online hacking
Answer:
According to our constitution we've successfully preserved our rights and freedoms.
Answer:
Cohort study
Explanation:
A cohort study is a longitudinal studio (which mean a group is observed through time) where the sample is a cohort (people who share some characteristics) and they are used to identify factors that might contribute to a particular condition, illness or disease.
In this case, the sample was made of people who <u>shared a common characteristic: being volleyball players</u>. This study was used to identify how <u>the use of sunscreen would affect the skin in terms of damage.</u>
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Therefore, we can say that this is an example of cohort study.