Primitive Farming

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Across
  1. 1. What primitive farmers used for cultivation, not big machines?
  2. 3. The type of climate where shifting cultivation is often practiced?
  3. 4. These areas are often cleared for shifting cultivation due to their dense vegetation?
Down
  1. 1. A type of farming where people grow just enough food for their own family.
  2. 2. The main goal of primitive farming, not for selling/meaning of subsistence?