Answer: Mustard Gas
Explanation:
Mustard gas is incredibly lethal and was used more in world war one than world war two that is a common misconception.
The Crusades
These were a series of military campaigns by western Europe Christians in the high middle ages. the purpose was to liberate the holy land from Muslim occupation and rule.
The environment often reflects or reinforces genetic differences; that is, certain genetic and environmental influences tend to act in the same direction. This tendency is called Genotype-environment correlation.
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Genotype-environment correlation</h3>
- When a person chooses surroundings based on traits that are impacted by genetics, genetic-environment correlation arises. For instance, highly intelligent students may choose classes that are harder, which broadens their knowledge even more.
- Research on environmental risk and protective factors has significant challenges because of the gene-environment interaction. Numerous studies in the social sciences have demonstrated that different surroundings are related to psychological characteristics, i.e., that exposure to a particular environment element is related to a particular behavior.
- These connections, however, do not imply that being exposed to that environment truly causes the feature. Every statistics curriculum in the social sciences teaches the fundamental principle that correlation does not inevitably imply causation.
To learn more about gene-environment interaction refer to:
brainly.com/question/14443482
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The researcher begins with the objective in quantitative research due to the fact that it guides him in his measurements and his enquiry as he researches.
<h3>What is quantitative research?</h3>
This is the type of research that is done through the collection and the analysis of numerical data.
This type of data is usually measured and it is very different from the qualitative research.
Read more on qualitative research here: brainly.com/question/24492737