Grade 7 : Soil

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Across
  1. 3. rotting dead matter of soil
  2. 5. unpaved road
  3. 7. soil, has least water retention
Down
  1. 1. mixture of rock particles and humus
  2. 2. soil, a mixture of clay, sand and silt
  3. 4. profile, vertical section through different layers of soil
  4. 6. soil, rice grows best in ?