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.
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Sustainability in an environmental context implies that humans don't have a negative impact on the world. So any way that reduces human impact, such as recycling, is definitely a way to promote sustainability. The alternative to recycling is simply to throw it into the trash or litter, it's obvious which practice is preferable when regarding sustainability.
I'm think its environment, but I don't know for sure :/ sorry
Answer:
not only one people all should know that child marriage should be stopped in every district of country the program than says that child marriage is very harmful that type of program should be conducted
