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History, 09.09.2021 21:40 toribrown3773

He graph shows air pollution in the city of London over time. A graph titled Air Pollution in London has year on the x-axis and particles (micrograms per cubic meter) on the y-axis. At 1700 the value is around 260; 1750, 360; 1800, 390; 1850, 580; 1875, 610; 1915, 380; 1950, 150; 2016, 20.

When did air pollution reach its highest point in London?

around 1825
around 1850
around 1875
around 1900

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