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Waterfalls form in the upper course of the river, as a result of a process called differential erosion. Bands of geology have varying resistances to erosion; as the river...

The chartist movement lacked coordination, small numbers of chartists organised themselves in local areas and maintained little connection to each other which made cooperation on a national level difficul...

The behaviourist approach believes that all behaviour is learnt directly through operant and classical conditioning. Classical conditioning is learning through association, where a neutral stimulus become...

1+4(root7) x 5 - 2(root7)5+2(root7) 5 - 2(root7)5 - 2(root7) + 20(root7) - (8x7) 25 - (4x7)5 +18(root7) - 56 -3-51 + 18(root7) -317 - 6(root7)ie a = 17, b = -6

84/2 = 4242/2 = 2121/3 = 77 /7 = 1therefore answer is 2x2x3x7