A sample of soil is collected from a garden. When this sample is mixed – InterviewSolution

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1.	A sample of soil is collected from a garden. When this sample is mixed with the red cabbage extract, the color of the extract changes to light pink. Which of the following should be added to make the soil suitable for plant growth?
Answer» A sample of soil is collected from a garden. When this sample is mixed with the red cabbage extract, the color of the extract changes to light pink. Which of the following should be added to make the soil suitable for plant growth?

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