Black soil, found in the northwest Deccan plateau, has low ________ content.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Phosphorus
Black soil (regur) has formed from the basalt, the cooled lava rock that covers the northwest Deccan plateau; it holds moisture well and suits cotton. It is generally poor in phosphoric content.
Calcium carbonate, magnesium and lime, the other three options, are among the nutrients black soil is rich in, along with potash.