How was britains government also a necessary ingredient

The Government of the United Kingdom, domestically referred to as Her Majesty's Government,[note 1] is the central government of the United Kingdom of Great Britain and Northern Ireland.The government is led by the prime minister (currently Boris Johnson, since 24 July 2019), who selects all the other ministers. The prime minister and their most senior ministers belong to the supreme decision-making committee, known as the Cabinet.

British Parliament

Ministers of the Crown are responsible to the House in which they sit; they make statements in that House and take questions from members of that House.

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map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.