An abiotic factor is anything that is not living. A snail, snake, and tree are all living factors of the environment, so that leaves us with only one choice. The rock :)
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The scenario that is an example of an innuendo is '<span>Prior to allowing the students to open their test booklets, Mrs. Smith tells the students to put away their notes.'. The 'taking away of the notes' would implicitly mean that they will be having a test. </span>