Inside the Earth

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Across
  1. 2. the layer between core and crust
  2. 3. Ferrous otherwise called
  3. 5. The uppermost layer of the Earth
  4. 6. Land under the sea
Down
  1. 1. shape of Earth
  2. 4. Nickel and ferrous
  3. 5. The layer which is Very high in temperature
  4. 6. Continental mass is made of