Responder
- **a) The biggest numbers for longitude are 180°E and 180°W.**
- **b) The line with the smallest number is the Prime Meridian (0°).**
- **c) \( 180^{\circ} \mathrm{W} \) and \( 180^{\circ} \mathrm{E} \) both refer to the International Date Line. They are the same line because they meet at 180° longitude, which is directly opposite the Prime Meridian.
Solución
Certainly! Let's break down each part of your question regarding lines of longitude:
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### **a) What are the biggest numbers you can find for a line of longitude?**
**Lines of longitude**, also known as **meridians**, are imaginary lines that run from the North Pole to the South Pole. They are measured in degrees (°) east or west of the **Prime Meridian**.
- **Maximum Values:**
- **180° East (180°E)**
- **180° West (180°W)**
These are the largest numerical values for longitude. They represent the farthest points east or west you can go from the Prime Meridian. Essentially, 180°E and 180°W mark the same line on the globe, which is directly opposite the Prime Meridian.
---
### **b) What is the name given to the line of longitude with the smallest number?**
The line of longitude with the smallest numerical value is the **Prime Meridian**, designated as **0° longitude**.
- **Prime Meridian (0° Longitude):**
- **Location:** Passes through the Royal Observatory in Greenwich, London, UK.
- **Significance:** Serves as the reference point from which all other longitudes are measured. It divides the Earth into the Eastern and Western Hemispheres.
---
### **c) Find the lines of longitude for \( 180^{\circ} \mathrm{W} \) and \( 180^{\circ} \mathrm{E} \). Why are they the same line?**
- **\( 180^{\circ} \mathrm{W} \):** 180 degrees west of the Prime Meridian.
- **\( 180^{\circ} \mathrm{E} \):** 180 degrees east of the Prime Meridian.
**Both \( 180^{\circ} \mathrm{W} \) and \( 180^{\circ} \mathrm{E} \) refer to the same line of longitude**, known as the **International Date Line (IDL)**.
**Why Are They the Same Line?**
1. **Geographical Convergence:**
- Longitude lines are measured up to 180° east and west from the Prime Meridian. At 180°, the east and west measurements converge to form a single line.
2. **International Date Line (IDL):**
- The IDL serves as the boundary between one calendar day and the next. While it generally follows the 180° longitude, it deviates in several places to accommodate the political and territorial boundaries of various nations and islands.
3. **Seamless Continuation:**
- There’s no "left" or "right" once you reach 180°. Whether you designate it as east or west depends on the direction from which you approach it, but geographically, it remains the same meridian.
---
**Visual Representation:**
```
North Pole
|
|
180°E/W (International Date Line)
|
|
South Pole
```
---
**Summary:**
- **Biggest Longitude Numbers:** 180°E and 180°W
- **Smallest Longitude Number:** Prime Meridian (0°)
- **\( 180^{\circ} \mathrm{W} \) and \( 180^{\circ} \mathrm{E} \):** Both represent the International Date Line, the same geographical line where the maximum longitudinal measurements meet.
---
I hope this clarifies your questions about lines of longitude! If you have any more queries, feel free to ask.
Respondido por UpStudy AI y revisado por un tutor profesional
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