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ok basically i have finished my history coursework on why the governmet evacuated children in Britain in the WW2 period. But I really can't think of a good conclusion to finish it and some it all up while at the same time using some key points and ideas :S :S ????????

Firsty millions of years ago were galaxies moving towards or away from earth and each other or towards earth and each other. Secondly what does beta radiation cause out of cancer, burns or hair loss? Thanks

Ok alpha is 2 protons and 2 electron and is negativly charged. But what us beta and gamma made up of and what is it's charge? Also would beta cause cancer hair loss or skin burns? Also why has the name red shift been given? Finally what is the movement of galaxies relative to each other and to...