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Pavement cell is a type of cell found in plant epidermis that are closely arranged to form a continuous layer, providing protection and minimizing water loss. These cells have a flattened shape and are involved in maintaining the structural integrity of the leaf surface.

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1y ago

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Why is dry pavement creates more friction than ice pavement does?

Dry pavement creates more friction than ice pavement because when surfaces are dry, there is more contact between the tires and the road, leading to increased friction. On the other hand, ice has a low coefficient of friction, causing tires to slip more easily since there is less traction between the ice and the tires.


What results in the formation of desert pavement?

Desert pavement is formed when wind erosion removes finer particles of soil, leaving behind a layer of coarser particles such as sand, gravel, and pebbles. Over time, these larger particles become tightly packed and form a hard, erosion-resistant surface that resembles a natural pavement.


Explain why potholes form in colder regions and not warmer?

Potholes form in colder regions due to the freeze-thaw cycle. When moisture gets into cracks in the pavement and freezes, it expands, stressing the pavement. As temperatures rise and the ice melts, the pavement contracts, leaving gaps that weaken the surface and lead to potholes. In warmer regions, the lack of significant freeze-thaw cycles reduces this pavement stress, resulting in fewer potholes.


How a dry spot on a wet pavement can be used to confirm in forensic?

A dry spot on a wet pavement can indicate that an object or a person was present at that spot when the pavement was wet. This can be useful in forensic investigations by showing the location where an object or person was placed or removed from the scene. It may also suggest tampering or movement of evidence.


What does water do to pavement when it continues to freeze and thaw?

When water freezes and thaws repeatedly on pavement, it can penetrate cracks and cause the pavement to expand and contract, leading to the formation of potholes and cracks. This process, known as freeze-thaw cycling, weakens the pavement structure and accelerates deterioration. Regular maintenance and proper drainage can help minimize these effects.