The answer should be either a or b Try Those decisions just Trying To help others
Cross-sectional research involves the comparison of two or more pre-existing groups of people under the same criteria.
<h3>What is
Cross-sectional research?</h3>
A cross-sectional study is a form of observational study in medical research, social science, and biology that analyzes data from a population, or a representative subset, at a specific point in time—that is, cross-sectional data.
Cross-sectional studies are used to analyze a population's illness burden or health requirements, and they are especially effective in informing health resource planning and allocation. A cross-sectional survey can be used to measure the burden of a certain disease in a defined population.
Cross-sectional studies capture a single point in time, gathering data from a research group at a particular point. This is often done with a single survey, questionnaire, or observation.
To know more about Cross-sectional research follow the link:
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I believe you have to add +.edu to the end of your search.
Well, Japan is a country, but it is located entirely on an archipelago - and this archipelago is called the Japanese Archipelago. So this part of the statement is correct.
It is located in the Pacific Ocean, in it's western and Norther part.
So the whole statement is correct too!