The wavelength of X-ray is of order of
1 1 cm
2 1m
3 1 Angstrom
4 10 micron
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A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
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Explain any four values that can be developed through teaching Physical Science
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the colour of a star is an indication of its?
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Which of the following is not a bleaching agent? 1 Sulphur dioxide 2 Carbon dioxide 3 Sodium hypochlorite 4 Chlorine
Biological Sciences 
