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Contours of different elevations do not unite to form one contour except in case of a
- a)Pond
- b)Vertical cliff
- c)Ridge
- d)Valley
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Contours of different elevations do not unite to form one contour exce...
Contours of different elevation unite to form one line only in the case of Vertical cliff.
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Contours of different elevations do not unite to form one contour exce...
Understanding Contours and Their Formation
Contours are lines on a map that connect points of equal elevation. They help in visualizing the topography of an area. However, these lines behave differently based on the landscape features.
Why Contours Unite in a Vertical Cliff
- Definition of a Vertical Cliff: A vertical cliff represents a sudden change in elevation. It is characterized by its steep, nearly vertical face.
- Contour Behavior:
- In the case of a vertical cliff, the contours will unite or overlap at the edge of the cliff. This happens because the elevation changes abruptly from one level to another.
- Since there are no intermediate elevations between the top and bottom of the cliff, the contours represent the same elevation at the cliff's edge.
Other Options Explained
- Pond:
- Contours around a pond will generally close in on themselves but will not unite to form a single line, as the water surface remains at a constant elevation.
- Ridge:
- On a ridge, contours are typically spaced apart, indicating a gradual slope. They do not unite as different elevations exist along the ridge.
- Valley:
- In a valley, the contours form V-shapes pointing uphill, and again do not unite since they represent varying elevations within the valley.
Conclusion
In summary, the only scenario where contours of different elevations unite is in the case of a vertical cliff. This characteristic makes option 'B' the correct answer. Understanding these topographical features is crucial in civil engineering for effective planning and design.
Contours are lines on a map that connect points of equal elevation. They help in visualizing the topography of an area. However, these lines behave differently based on the landscape features.
Why Contours Unite in a Vertical Cliff
- Definition of a Vertical Cliff: A vertical cliff represents a sudden change in elevation. It is characterized by its steep, nearly vertical face.
- Contour Behavior:
- In the case of a vertical cliff, the contours will unite or overlap at the edge of the cliff. This happens because the elevation changes abruptly from one level to another.
- Since there are no intermediate elevations between the top and bottom of the cliff, the contours represent the same elevation at the cliff's edge.
Other Options Explained
- Pond:
- Contours around a pond will generally close in on themselves but will not unite to form a single line, as the water surface remains at a constant elevation.
- Ridge:
- On a ridge, contours are typically spaced apart, indicating a gradual slope. They do not unite as different elevations exist along the ridge.
- Valley:
- In a valley, the contours form V-shapes pointing uphill, and again do not unite since they represent varying elevations within the valley.
Conclusion
In summary, the only scenario where contours of different elevations unite is in the case of a vertical cliff. This characteristic makes option 'B' the correct answer. Understanding these topographical features is crucial in civil engineering for effective planning and design.
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