In geodesy and cartography, which single statement always holds true for places that have the same geographic latitude?
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AThey lie on the same parallel of latitude.
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BThey lie on the same meridian.
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CThey are equidistant from both poles.
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DThey have identical local solar time at any instant.
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EThey have the same longitude.
Answer
Correct Answer: They lie on the same parallel of latitude.
Explanation
Introduction / Context:Latitude and longitude define positions on Earth. Questions often test whether candidates can distinguish what “same latitude” guarantees versus what it does not (e.g., meridian or time).
Given Data / Assumptions:
- Latitude is angular distance north or south of the equator.
- Parallels are circles of constant latitude.
- Local solar time depends primarily on longitude, not latitude.
Concept / Approach:Any two points with the same latitude lie on the same parallel, a small circle parallel to the equator. This is the only universally true statement among common misconceptions about meridians and time.
Step-by-Step Solution:1) By definition, “same latitude” ⇒ same parallel.2) Meridians are lines of constant longitude; same latitude does not imply same longitude.3) Equal local solar time requires equal longitude, not latitude.4) Being equidistant from both poles is only true at the equator; elsewhere distances differ.
Verification / Alternative check:On a globe, draw any parallel (say 30°N); cities along it share that latitude but span many longitudes and time zones.
Why Other Options Are Wrong:Option B/E: Same latitude does not fix longitude or meridian.Option C: Only the equator is equidistant from both poles.Option D: Local solar time varies with longitude.
Common Pitfalls:Assuming shared climate or time zones from latitude alone; these depend on longitude and other factors.
Final Answer:They lie on the same parallel of latitude.