1) Which one of the words below is a name of a type of radiation? a) Omega b) Alpha c) Delta d) Sigma 2) Which of the following types of radiation has the greatest penetrating power? a) Omega b) Beta c) Gamma d) Alpha 3) Alpha radiation is used in which device? a) Paper roller b) Smoke alarm c) X-ray machine d) Pipe leak detector 4) Gamma radiation is stopped by which of the following a) Thick piece of lead b) Thin piece of aluminium c) Sheet of paper d) Nothing 5) Where can nuclear radiation be disposed of? a) Landfill b) Sea c) Buried underground d) Anywhere 6) Which of the following is the greatest source of background radiation? a) rocks b) Cosmic rays c) Luminous paint d) Nuclear power 7) What do we call the device used to measure radiation? a) Ticket counter b) Radiation machine c) Geiger-counter d) Alpha counter 8) High exposure to powerful radiation... a) Is not harmful b) Can make you itchy c) Damages your cells d) Makes you stronger

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