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aleksklad [387]
3 years ago
12

A group of students is trying to determine which detergent will best remove an oil stain. They stain five separate cloths with o

il and then wash each of the cloths in a different detergent. They repeat each test two more times. Which step should be included in their investigative plan?
Biology
1 answer:
Natalija [7]3 years ago
3 0

Answer:

Place each oil stain on separate, but identical, pieces of cloth.

Explanation:

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