Question

what happened if we put sweet potato in plain water for 4 days​

Answer 1

Answer:

You want half of the sweet potato under water and the rest not. The part under water will grow roots and the part above water will grow sprouts (known as sweet potato slips). If your sweet potato is too skinny you can use toothpicks to keep it from falling right down into the jar of water.

Answer 2

Answer:

Anything strange or new won't happen but as we know and have heard that excess water absorbtion could ruin or kill the beneficial bacteria inside the vegetables. But you could eat sweet potatoes as they are great source of fibre and also helps in improving your vision.

Explanation:

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