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why distance between two longitudes decreases towards the poles where as the distance between two latitudes remains the same ecerywhere???
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why distance between two longitudes decreases towards the poles where ...
The distance between two successive lines of latitude remain constant (111km) because latitudes run parallel to each other and never meets the other latitude. But distance between the longitudes decreases as they go towards the Pole. Finally, all longitudes meet at the Poles.
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why distance between two longitudes decreases towards the poles where ...
Understanding Latitudes and Longitudes
The Earth is divided into a grid of lines called latitudes and longitudes, which help in locating places.
Latitudes
- Definition: Lines running parallel to the Equator.
- Distance Consistency:
- The distance between each degree of latitude is approximately 111 kilometers, regardless of where you are on the globe.
- This is because latitudes are spaced evenly from the Equator (0°) to the poles (90°N and 90°S).
Longitudes
- Definition: Lines that run from the North Pole to the South Pole.
- Varying Distances:
- The distance between longitudes decreases as one moves towards the poles.
- At the Equator, the distance between each degree of longitude is about 111 kilometers. However, this distance shrinks to zero at the poles.
- This is due to the spherical shape of the Earth; as you move towards the poles, the circles of latitude get smaller, causing longitudes to converge.
Geographical Implications
- Practical Navigation:
- Understanding the difference in spacing is crucial for navigation and mapping.
- This affects how distances are measured and the way we perceive the layout of the Earth’s surface.
Conclusion
- Key Takeaway:
- While latitudes maintain a consistent distance, longitudes vary significantly, highlighting the unique shape and structure of our planet.
This fundamental geographic principle is essential for students studying geography, particularly in the context of understanding India's location and its geographical features.
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Direction: Read the case Study given below and answer an three of the questions that follow.The temperature-depth profile for the ocean water shows how the temperature decreases with the increasing depth. The profile shows a boundary region between the surface waters of the ocean and the deeper layers. The boundary usually begins around 100 - 400 m below the sea surface and extends several hundred of metres downward. This boundary region, from where there is a rapid decrease of temperature, is called the thermocline. About 90 per cent of the total volume of water is found below the thermocline in the deep ocean. In this zone, temperatures approach 0°C. The temperature structure of oceans over middle and low latitudes can be described as a three-layer system from surface to the bottom. The first layer represents the top layer of warm oceanic water and it is about 500 m thick with temperatures ranging between 20° and 25°C. This layer, within the tropical region, is present throughout the year but in mid latitudes it develops only during summer. The second layer called the thermocline layer lies below the first layer and is characterised by rapid decrease in temperature with increasing depth. The thermocline is 500-1,000 m thick. The third layer is very cold and extends upto the deep ocean floor. In the Arctic and Antarctic circles, the surface water temperatures are close to 0°C and so the temperature change with the depth is very slight. Here, only one layer of cold water exists, which extends from surface to deep ocean floor.Q. The __________ profile for the ocean water shows how the temperature decreases with the increasing depth.

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why distance between two longitudes decreases towards the poles where as the distance between two latitudes remains the same ecerywhere??? Related: Revision Notes - India - Location, Class 11, Geography?
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