Which one of the following cities is the closest to Equator ?
Singapore
Understanding Proximity to the Equator
The Equator is an imaginary line that circles the Earth at $0^\circ$ latitude. Cities or locations situated closer to the Equator will have latitudes that are closer to $0^\circ$, whether they are in the Northern Hemisphere (North latitude) or the Southern Hemisphere (South latitude). To find which of the given cities is closest to the Equator, we need to look at the approximate latitudes of each city.
Comparing City Latitudes
Let's examine the approximate latitudes for each city provided in the options:
| City | Approximate Latitude |
|---|---|
| Mogadishu | $2.0^\circ$ North |
| Singapore | $1.3^\circ$ North |
| Colombo | $6.9^\circ$ North |
| Manila | $14.6^\circ$ North |
Calculating Distance from the Equator ($0^\circ$ Latitude)
To determine which city is closest to the Equator, we compare the absolute value of each city's latitude to $0^\circ$. The smaller the absolute latitude, the closer the city is to the Equator.
- Mogadishu: The absolute difference from the Equator is $|2.0^\circ - 0^\circ| = 2.0^\circ$.
- Singapore: The absolute difference from the Equator is $|1.3^\circ - 0^\circ| = 1.3^\circ$.
- Colombo: The absolute difference from the Equator is $|6.9^\circ - 0^\circ| = 6.9^\circ$.
- Manila: The absolute difference from the Equator is $|14.6^\circ - 0^\circ| = 14.6^\circ$.
Identifying the Closest City
Comparing the differences calculated:
- Mogadishu is approximately $2.0^\circ$ away from the Equator.
- Singapore is approximately $1.3^\circ$ away from the Equator.
- Colombo is approximately $6.9^\circ$ away from the Equator.
- Manila is approximately $14.6^\circ$ away from the Equator.
The smallest difference is $1.3^\circ$, which corresponds to Singapore's latitude. Therefore, Singapore is the city closest to the Equator among the given options.
Conclusion
Based on their approximate latitudes, Singapore is the closest city to the Equator among Mogadishu, Singapore, Colombo, and Manila.
Revision Table: Key Concepts
| Concept | Explanation |
|---|---|
| Equator | The imaginary line around the Earth at $0^\circ$ latitude, equidistant from the North and South poles. |
| Latitude | The geographic coordinate that specifies the north-south position of a point on the Earth's surface. Measured in degrees from $0^\circ$ (Equator) to $90^\circ$ North or South (the poles). |
| Proximity to Equator | Determined by how close a location's latitude is to $0^\circ$. Locations with latitudes near $0^\circ$ are close to the Equator. |
Additional Information: Equator and Latitude Zones
The Equator divides the Earth into the Northern Hemisphere and the Southern Hemisphere. Regions near the Equator generally experience a tropical climate with high temperatures and significant rainfall throughout the year because the sun's rays are most direct in this region.
Important lines of latitude besides the Equator include:
- Tropic of Cancer: Approximately $23.5^\circ$ North latitude.
- Tropic of Capricorn: Approximately $23.5^\circ$ South latitude.
- Arctic Circle: Approximately $66.5^\circ$ North latitude.
- Antarctic Circle: Approximately $66.5^\circ$ South latitude.
Understanding latitude helps us locate places on Earth and understand their general climate characteristics.
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