Answer:
d. cross-sectional study
Explanation:
In research, a cross-sectional study consists of a gathering of data from a population or a subset of the population we want to investigate at an specific point of time. In other words, the data will give us an idea of what's happening within a group in a particular moment in time.
In this example, the researcher gives 20-year-olds, 40-year-olds, and 60-year-olds a questionnaire. He wants to know if older people are calmer than younger ones. We can see that <u>he wants to know what's happening within this groups (the 20 year-olds, the 40's and the 60's) during this particular time of their life </u>and therefore determine if the 60 year-olds are calmer. Therefore this is an example of cross-sectional study.
Answer:
The website design is of professional quality.
The date is current or appropriate to the topic.
The author has valid credentials related to the topic.
Explanation:
A source is said to be credible when the information contained in the source is legit and unbiased. This is can be observed when the website/visual design is of professional quality and worth. They may include different inputs and layouts that indicate effort and dedication.
The data and information contained in the sources are latest and appropriate to the topic. They are mostly relevant and up-to-date.
Also in a credible source, one will find that the author will include valid credentials related to the topic. It helps them build good credentials and affiliations to certain interest groups.
I think its the Perpetration of the gifts... im not sure
Answer:
Smallest Glacier
While there is no global standard for what size a body of ice must be to be considered a glacier, USGS scientists in Glacier National Park use the commonly accepted guideline of 0.1 square kilometers (about 25 acres) as the minimum size of a glacier.
Explanation:
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