The difference was that serfs were required to work for their lord and give him food for exchange of protection when war times appeared. Peasants, on the other hand, had no obligation to do so, they were just people who were agricultural workers and were growing crops.
If a researcher wanted to combine the results of lots of studies together on the same subject, meta analysis technique would they use.
It should be noted that the shared picture book reading was a research linked to children having communication challenges.It should be noted that fostering communication skills in children is important for their holistic development. In this case, the meta-analysis concluded that shared picture book reading was linked to children having challenges with speeches or communication. Therefore, the shared book reading was important for communicative development.
The meta-analysis is an technique that includes all the results of the multiple scientific studies and can be performed when there multiple studies and address the same individual questions and are expected to have some degree of error.
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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.
Explanation:
Coal is the leading culprit of air pollution in China. 75% of the premature deaths are caused by the 152 coal-fired power plants in Hebei Province. ... Air pollution will remain a serious problem in China as long as coal continues to be the country's major energy source.
