Tó vs Arch

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The Coimbatore City Police (or CCP) is the law enforcement agency in the city of Coimbatore, India. The CCP works under the jurisdiction of the Tamil Nadu Police. The CCP has three wings: traffic, law and order, and crime. Each of these wings comes under four zones: Central, South, east and West.

In 2012, a Cyber Crime cell was set up to crack cases such as fraudulent emails and Nigerian scams. It also has an Anti-Human Trafficking unit that was established in 2013 to help combat trafficking of women and children.

Source: Wikipedia

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An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof.

Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures.

Source: Wikipedia