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Water, Travel and Communication
1. Sources, collection, storage, purification and conservation of water
2. Water cycle, groundwater, floods, drought and local water problems
3. Means of transport, maps, routes, distance and changes over time
4. Postal, telephone, digital and community communication systems
Important topics
- Sources, collection, storage, purification and conservation of water
- Water cycle, groundwater, floods, drought and local water problems
- Means of transport, maps, routes, distance and changes over time
- Postal, telephone, digital and community communication systems