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  1. ...presence of a spark or open flame under normal working conditions . Oxidizing:- These materials increase...indicate exactly why and to what degree a product is dangerous . It can be classified as Toxic...

  2. ... impolite to call the teachers'name directly. 3. It is dangerous to cross the road without paying atention to the condition of the road. 4. It is important to do research works before you...

  3. ...must include identifying and correcting conditions conducive to the breeding and congregation of these...; this guy should, therefore, be considered dangerous . It has simple eyes that it rarely...

  4. ...may lead to leukaemia through prolonged exposure. 1,3-butadiene is another dangerous compound which is often associated with industrial uses. ...