What is responsible for the potholes in our streets?

Question

physical weathering due to the cycle of freezing and thawing

chemical weathering due to oxidation

chemical weathering due to mosses and lichens

physical weathering due to wind

Answer 1

The primary cause of potholes in streets is physical weathering due to the cycle of freezing and thawing. This process occurs when water seeps into cracks in the pavement. When temperatures drop, the water freezes, expands, and creates pressure on the surrounding material. When temperatures rise again, the ice melts, causing the pavement to contract. Over time, this repeated freeze-thaw cycle leads to the deterioration of the road surface, ultimately resulting in potholes.