Which of the following metals causes harmful effects?

Which of the following are the harmful effects of nitrogen oxide? It retards the rate of photosynthesis. It causes respiratory disease in children. It is toxic to living tissues.

Which of the following is/are the harmful effect(s) of UV radiation? It causes mutation in the cell. UV radiation leads to ageing of skin. It kills many phytoplanktons. It causes global warming.

Which of the following metals causes Itai-Itai disease ?

Which of the following causes "Greenhouse effect" ?

Which of the following will cause a more effective mutation?

Which of the following will cause a more effective mutation?

Which of the following will cause a more effective mutation?