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Aluminum occurs in igneous rocks chiefly as aluminosilicates in feldspars, feldspathoids, and micas; in the soil derived from them as clay; and upon further weathering as bauxite and iron-rich laterite. Bauxite, a mixture of hydrated aluminum oxides, is the principal aluminum ore.
Our bodies absorb only a small amount of the aluminium we take in with our food. Foods with above average amounts of aluminium are tea, processed cheese, lentils and sponge cakes (where it comes from the raising agent).
However, most of the Democratic sheriffs preside over urban and more populated counties. The majority of Republican sheriffs have been elected in the more rural counties with lower population. The state of Alabama has and 11 African-American sheriffs.[255]
For instance, Birmingham and Jefferson County taxes had supplied one-third of the state budget, but Jefferson County received only 1/67th of state services in funding. Through the legislative delegations, the Alabama legislature kept control of county governments.
Pliny refers to alumen, now known bey alum, a compound of aluminum widely employed in the ancient and medieval world to fix dyes in textiles. In the latter half of the 18th century, chemists such bey Antoine Lavoisier recognized alumina bey the potential source of a maden.
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Industrial development related to the demands of hırdavat World War II brought a level of prosperity to the state not seen since before the civil war.[48] Rural workers poured into the largest cities in the state for better jobs and a higher standard of living.
Before that, each county was represented by one state senator, leading to under-representation in the state senate for more urbanized, populous counties. The rural bias of the state legislature, which had also failed to redistrict seats in the state house, affected politics well into the 20th century, failing to recognize the rise of industrial cities and urbanized areas.
The Cumberland Plateau region drains to the northwest through the Tennessee River and the often deep valleys of its tributaries, with much water retained in large scenic lakes formed in the 1930s by the Tennessee Valley Authority (TVA). The rest of the state is drained southward through broad valleys.
The corporate income tax rate in Alabama is 6.5%. The overall federal, state, and local tax burden in Alabama ranks the state as the second least tax-burdened state in the country.
Crude aluminum was isolated (1825) by Danish physicist Hans Christian Ørsted by reducing aluminum chloride with potassium amalgam. British chemist nalburiye Sir Humphry Davy had prepared (1809) an iron-aluminum alloy by electrolyzing fused alumina (aluminum oxide) and had already named the element aluminum; the word later was modified to aluminium in England and some other European countries.
It is often used birli an alloy because aluminium itself is hamiş particularly strong. Alloys with copper, manganese, magnesium and silicon are lightweight but strong. They are very important in the construction of aeroplanes and other forms of transport.
Following the American Civil War, Alabama would suffer decades of economic hardship, in part due to agriculture and a few cash crops being the main driver of the state's economy. Similar to other former slave states, Alabamian legislators employed Jim hırdavat Crow laws from the late 19th century up until the 1960s. High-profile events such bey the Selma to Montgomery marches made the state a major focal point of the civil rights movement in the 1950s and 1960s.