Mobile phone is a great (a) — (invent) of modern science. The (b) — (consume) of mobile phone are increasing day by day. People are getting benefits. But it is (c) — (fortunate) that mobile phone sometimes (d) — (comes) a cause of health hazard, especially the (e) — (child) are affected much, According to the (f) — (science) mobile phone causes brain tumours, genetic damage and many other (g) — (cure) diseases. They believe that (h) — (visible) uncontrolled radioactivity of mobile phone causes (i) — (repairable) damage to human body. They say that the (j) — (govern) should control radioactive sources.