Question

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Answer 1

hi dear here is your answer

The plastic pipe in colder countries often burst due to the atmospheric pressure and surface tension inside the pipe so the air gets trapped inside the pipe and it cause the pipe to burst

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Answer 2

Answer:

In colder countries often temperature reaches below zero degree centigrade , the freezing temperature of water.

Explanation:

In colder countries often temperatures reaches below 0 degree centigrade. Water freezes at 0 degree centigrade. When water freezes, it becomes ice. Since density of ice is less than water so volume increases. Increased volume of the ice produces pressure inside the pipe and the pipe bursts when the pressure exceeds the withstanding limit of the pipe.