Question No:1 Eutrophicatton causes reduction In [A] Dissolved Oxygen [B] Nutrients [C] Dissolved Salts [D] All…

Question No:1 Which one of the to Ho wing statements is not true? [A] pH of…

Question No:1 Wllich of the following is NOT involved in the formation of photochemical smog? [A]…

Question No:1    Wllich of the following is NOT involved in the formation of photochemical smog? [A]  Hydrocarbon [B]  NO [C]  SO2 [D]  O3 Question No:2    In the lower atmosphere, ozone is formed by the reaction between [A]  O2 and CFCs…

Question No:1    The layer of atmosphere which extends up to 10 km from sea level is called [A]  Troposphere [B]  Ionosphere [C]  Mesosphere [D]  None of these Question No:2    Which one  of the  following  is a  secondary pollutant? [A]  CO…

Question No:1 Photochemical smog occurs in warm dry and sunny climate. One of the following is…

Question No:1 Pollution is [A] removal of top soil [B] release of toxic/undesirable materials in environment…

QUESTION NO:1

Question No:1 Select the correct order of Increasing bond length of C =C,C -C.C- O and…

Question No:1 In thermodynamics, the meaning of universe is [A] only system. [B] only surroundings. [C]…