Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes have two types of bias. A political poll is conducted by contacting people on landline phones.

A political poll is administered by contacting people on landline phones. The pollsters contacted 20000 households, and 4747 individuals agreed to speak with the caller.

A political poll is conducted by allowing users to register on a website and fill out an online survey.

A political poll asks the question, "If you found out that Candidate A was given a large sum of money by Special Interest Group B, would that change your opinion of how hypocritical Candidate A is?"

Answer Bank:

Wording of question

Nonresponse

Undercoverage

Voluntary Response

If you are talking about typical sand you would find at the beach or in a river bed here on earth, there are some differences. i would say the first biggest difference is in composition and mineral make up. although the moon is largely made of the same materials as earth’s mantle and surface, the moon experiences very little weathering (no liquid water and virtually no atmosphere). “earth” sand is typically composed mostly of quartz grains. this is because quartz is highly resistant to both physical and chemical weathering. most of the other minerals originally with the quartz are broken down into fine clay and carried away, chemically eroded/ dissolved, or some combination of the two. this usually leaves only the quartz behind, and so most of the time when you see/think of sand, you are talking about quartz. without these weathering mechanisms on the moon, the “sand” (which is likely more silt or clay sized grains anyways) would consist of mostly other minerals like anorthosite, olivine, and proxene.

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Answer evaporation and condensation;