A. Leave blue litmus paper unchanged
B. Change blue litmus paper to re
C. Change red litmus paper to blue
D. Be rich in soil microbes
Correct Answer: Option B
B. Change blue litmus paper to re
A. Leave blue litmus paper unchanged
B. Change blue litmus paper to re
C. Change red litmus paper to blue
D. Be rich in soil microbes
Correct Answer: Option B
B. Change blue litmus paper to re
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