Taj's crosswords puzzle

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Across
  1. 2. the ability to sustain, or maintain, our current level of natural resources so that we may rely on them in the future
  2. 4. means dry
  3. 5. dry sandy area
  4. 6. Compared to the rest of the Middle East, Turkey is located in much higher latitudes and its terrain and climate are much different.
Down
  1. 1. river,ocean,lake,pond
  2. 3. longest river in the world