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For example, the logarithm of 1000 to base 10 is 3, because 1000 is 10 to the 3 rd power: 1000 = 10 3 = 10 × 10 × 10. More generally, if x = b y, then y is the logarithm of x to base b, written log b x, so log 10 1000 = 3. As a single-variable function, the logarithm to base b is the inverse of exponentiation with base b.
Most fluxes quoted in high-level discussions of climate are global values, which means they are the total flow of energy over the entire globe, divided by the surface area of the Earth, 5.1 × 10 14 m 2 (5.1 × 10 8 km 2; 2.0 × 10 8 sq mi).
[10] [4] [111] As of 2019, 40 per cent of the 1.788 million families in the city live below the poverty line. [112] As of 2017 [update] , the city had 2.2 million households, with 40 per cent of the residents not owning a house. [ 113 ]
California is traditionally separated into Northern California and Southern California, divided by a straight border which runs across the state, separating the northern 48 counties from the southern 10 counties. Despite the persistence of the northern-southern divide, California is more precisely divided into many regions, multiple of which ...
[87] [88] Honshu has the highest population density at 450 persons/km 2 (1200/sq mi) as of 2010, while Hokkaido has the lowest density of 64.5 persons/km 2 as of 2016. [89] As of 2014, approximately 0.5% of Japan's total area is reclaimed land (umetatechi). [90] Lake Biwa is an ancient lake and the country's largest freshwater lake. [91]
Mexico, [a] [b] officially the United Mexican States, [c] is a country in North America.It borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundaries with the Pacific Ocean to the west, the Caribbean Sea to the southeast, and the Gulf of Mexico to the east. [12]
According to a survey conducted by Addiction Switzerland, fourteen per cent of men and 6.5% of women between 20 and 24 reported consuming cannabis in the past 30 days in 2020, and 4 Swiss cities were listed among the top 10 European cities for cocaine use as measured in wastewater, down from 5 in 2018.