Geography · Soil Resources
मृदा ग्रंथियों में 'कंकड़' की उपस्थिति किसकी मौजूदगी को दर्शाती है?
- 1जैविक ह्यूमय
- 2अम्लीय मृदा
- 3कैल्शियम कार्बोनेट✓
- 4आयरन ऑक्साइड
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कैल्शियम कार्बोनेट
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