Question
2.2.2 Identify the perennial water source in block C 2 on the topographic map. (1×2) (2)
Ask by Haynes Bradley. in South Africa
Mar 13,2025
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Answer
The perennial water source in block C2 is the continuous blue line on the topographic map.
Solution
1. First, note that topographic maps generally indicate water sources by using blue lines. Perennial water sources (those that flow year‐round) are typically shown as continuous blue lines, whereas ephemeral streams are often broken or dashed lines.
2. In block \( C2 \) on the map, examine the features marked with blue lines. Identify the watercourse that is drawn as a continuous (solid) blue line, which signals a water source that flows throughout the year.
3. Based on the map’s legend and the markings in block \( C2 \), the watercourse depicted by the solid blue line is the perennial water source.
4. Therefore, the perennial water source in block \( C2 \) is the continuous stream (or river) shown on the map.
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In block C2, the perennial water source can typically be identified by looking for blue lines or shapes indicated on the topographic map. These features represent rivers, streams, lakes, or ponds that maintain a constant water supply throughout various seasons, unlike temporary sources which may be marked differently. Additionally, when examining the contour lines surrounding these water features, a close cluster of lines can indicate valley areas where water naturally collects, further confirming the presence of a perennial water source. Always check the map legend for specific symbols used for water sources to ensure accurate identification!
