The best cause is erosion creating waves and pushing forward the line where the sand starts
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According to SAMHSA (Substance Abuse and Mental Health Services Administration), about 50 million people in the United States experience symptoms of mental illness every year. Severe cases number more than ten million.
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Answer:
Answer is Validity.
Explanation:
Validity can be described or explained by assertion of information.
Validity has important function, because it helps people to know that the information that was provided has value. This means that the information or statement provided is not false.
Thomas Cook and Dan Campbell also explain that the validity of an information can also be ascertained by providing and letting readers have access to the sources of references.