Question

why is potato A necessary for this experiment​

Answer 1

Answer:

(ii) Potato cup A is necessary in the experiment as a 'control' for providing comparison with situations created in potato cups B, C and D. It indicates that the potato cavity alone does not induce movement of water.

Explanation:

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Answer 2

Answer:

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YOUR ANSWER =>

Potato cup A is necessary in the experiment as a 'control' for providing comparison with situations created in potato cups B, C and D. It indicates that the potato cavity alone does not induce movement of water.