Answer:
Peasants and nobles in the middle ages were very different from each other. Peasants lived a life of working hard to get things, while nobles were gave what they wanted. Peasants had to farm and work all day to get food for their families.
Explanation:
Answer:
the amount of gold he and his country produced
Explanation:
Risk Group 4 agents cause serious or lethal human or animal disease and are readily transmitted. Effective treatment and preventive measures are not usually available. Examples include: Smallpox virus, Ebola virus. No bacteria, fungi, or parasites in this group.
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.
