Potters of Sohagpur mix burnt horse dung into black soil to:
AOpen up pores
BAdd colour
CKill insects
DAdd weight
Answer & Solution
Correct answer: A. Open up pores
1. Water then percolates out of the matka.
2. Burnt dung opens pores in the clay.
3. Evaporation cools the water inside.
_Source: NCERT Class 7 Science, Chapter 9, Soil._
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