When it gets extremely cold during winter nights, water pipes burst because the volume of water increases after freezing. As water freezes, it expands, exerting pressure on the walls of the pipe and causing it to rupture.
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When it gets extremely cold during winter nights, water pipes burst because the volume of water increases after freezing. As water freezes, it expands, exerting pressure on the walls of the pipe and causing it to rupture.
When it gets extremely cold during winter nights, water pipes burst because the volume of water increases after freezing (C). Water expands when it freezes, forming ice crystals that take up more space than liquid water. This expansion exerts tremendous pressure on the walls of the pipe, leading to its rupture. Options (A), (B), and (D) are incorrect because they do not accurately explain the phenomenon of burst water pipes during freezing temperatures. The density of water decreases after freezing (A), but this doesn’t directly cause pipes to burst. Water becoming hard (B) doesn’t necessarily lead to pipe breakage, and the metal of water pipes doesn’t melt after freezing (D). The primary reason for burst pipes is the expansion of water upon freezing, which places excessive pressure on the pipe walls, ultimately causing them to rupture. Therefore, the correct option is (C).