26-04-2020
Biology

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26-04-2020

The answer is B, because sound waves vibrate through mediums (such as liquids, solids, and gas). It can’t travel through a vacuum because there would be no molecules to vibrate.

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When implementing an ethics code, it is important to share it with all because pressure to act unethically often comes from the outside.

A student scored 120 marks out of 200.Write her marks scored as a fraction in lowest terms.

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