A few grams of dried soil were first heated until red hot and then further…

Biology JAMB 1980

A few grams of dried soil were first heated until red hot and then further heated until no more smoke was released. This experiment was to determine

  • amount of water in soil
  • percentage of water in soil
  • presence of humus in soil checkmark
  • resistance of laterities to heat
  • release of smoke from the soil

The correct answer is: C

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