Trade and transport and aerial photographs

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Across
  1. 3. South Africa's first rapid rail system
  2. 5. Ships off-load cargo at these
  3. 6. A slow, but safe means of transporting
  4. 8. A photograph taken at an angle
  5. 11. These photos are taken from the air
  6. 13. Trucks need to be ____ when transporting fresh produce
  7. 14. transported by train
  8. 15. The degrees at which a high oblique photo is taken
  9. 16. Trucks, cars and vans travel on these
  10. 17. Johannesburg's international Airport, O.R.
Down
  1. 1. Countries that have a ______ will import products
  2. 2. To bring goods into a country
  3. 4. A fast, but expensive means of transport
  4. 5. You can see this in a high oblique photo
  5. 7. The best mode of transport for chemicals
  6. 9. This means man-made
  7. 10. To sell to other countries
  8. 12. These aerial photos are good for drawing maps