Nature

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Across
  1. 2. a piece of paper with countries, continents, rivers, seas and oceans
  2. 3. it is a small mountain usually covered with grass
  3. 4. something built by people to work or live in
  4. 5. a body of water that is smaller than the sea
  5. 6. Ukraine, the USA or the UK
  6. 7. a big body of water, people often go on holiday there
Down
  1. 1. a piece of cloth with special colours that each country has
  2. 2. huge hills with stones
  3. 6. a big piece of land with many countries on it