Country vocabulary

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Across
  1. 2. What do I speak in this country?
  2. 3. How many people are there in this country?
  3. 4. Where do I meet my neighboring countries?
  4. 6. What's the full name of a country?
Down
  1. 1. What are the most important rivers?
  2. 5. How big/large is this country in size?