Clay and organic matter of the soil have negative charges. They attract positively charged ions like.
A
Ca2+
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B
Mg2+
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C
K+
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D
All the above
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Solution
The correct option is B All the above Clay and organic matter are negatively charged substances. Due to the electrostatic attraction ions like Ca2+, Mg2+, K+ attract to these as they are positively charged species.