Human activities contribute change- by change in the earths surface
the variable is that it gets bleach longer it has less oxygen
Answer:Ability test
Explanation:Ability tests or aptitude tests are standardised tests which are used to assess if an individual is able to perform a certain task which is related to the work they will be doing
They don't measure academic ability but more how one is able to perform which will tell the employer I'd one can do the job
The reanalysis of data that was originally gathered for other purposes or by other researchers is an example of secondary analysis.
Secondary analysis is the practice of the use of secondary information in studies. As a studies approach, it saves both money and time and avoids unnecessary duplication of research efforts. Secondary evaluation is usually contrasted with number one evaluation, that is the evaluation of primary information independently accrued by a researcher.
Secondary evaluation is a form of research that makes use of current records, or secondary information, amassed formerly to carry out a brand new observation. Researchers may use quantitative or qualitative facts some other research crew or business enterprise accrued or produced for specific motives and examine it in a brand new way.
The secondary analysis involves a researcher using the information that a person else has gathered for his or her own purposes. Researchers leverage secondary information analysis and try to answer a new study's query or to take a look at an alternative angle at the unique query of a previous observation.
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