Answer:
i see the pics but what do you mean
Explanation:
The time it takes is called Reaction Time
It’s not the “light” it’s the rays it burns through the first layer of skin causing other reactions leading to skin cancer
The three different types of epidemiological nutrition studies: cross-sectional, case-control, and prospective cohort studies. The three basic types of nutrition research are randomized, animal and laboratory studies, and cohort studies.
Cross-sectional studies are used primarily to determine the prevalence of a problem, while cohort studies involve the study of a population that is both exposed and unexposed to the cause of the disease. Case control studies are used to study 2 groups of cases (diseased) and controls (non-diseased) and to identify risk factors between them. Randomized trials, researchers actually intervene to see how a particular behavior change or treatment, for example, will affect a health outcome. Animal and laboratory studies are studies carried out in laboratories on cells, tissues or animals. Laboratories provide tightly controlled conditions that have a broad impact on human health.
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C. Mostly the spongy and also the compact
