Answer:
1. a diagrammatic representation of an area of land or sea showing physical features, cities, roads, etc.
2. <em>Three Different Norths-</em>
- True North
- Grid North
- Magnetic North.
3. The number of the vertical grid line on the left (west) side of the grid square is the first and second digits of the coordinates. The number of the horizontal grid line on the bottom (south) side of the grid square is the fourth and fifth digits of the coordinates.
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