One of the primary benefits of a survey is that they:
- <u>B. allow efficient gathering of unobservable phenomena</u>
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A survey is a system of qualitative research which is used to gather opinions of people about a particular subject or issue.
As a result of this, one of the primary benefits of a survey is to gather information about unobserved phenomena with the use of questionnaires and other means.
Therefore, the correct answer is option B
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C-- Change "is; actually..." to ...is. Actually, I can't believe its still getting bigger.
Answer:
Puddles of water seen after a rainstorm that are clouded with sediment suggest erosion is occurring whereas puddles of clear water are a sign of minimal erosion. Lighter colored soil seen overtime is also a sign of erosion but can be more difficult to identify.
