Fish die in water bodies polluted by sewage due to
Fish die in water bodies polluted by sewage due to Options (a) pathogens (b) Clogging of gills (c) Decreases in…
6 years ago
Environmental Chemistry
Surface water contains
Surface water contains Options (a) salt + organic matter (b) only salt (c) organic matter (d) suspended impurity Correct Answer:…
6 years ago
Addition of phosphate fertilizers into water leads to
Addition of phosphate fertilizers into water leads to Options (a) increased growth of decomposers (b) reduced algal growth (c) increased…
6 years ago
Atmosphere of big/metropolitan cities is polluted most by
Atmosphere of big/metropolitan cities is polluted most by Options (a) automobile exhausts (b) pesticide residue (c) household waste (d) radioactive…
6 years ago
The basic component of photochemical smog is
The basic component of photochemical smog is Options (a) PBN (b) PAN (c) SO₂ (d) all of these Correct Answer:…
6 years ago
Biochemical oxygen Demand ,(BOD) is a measure of organic material present in water
Biochemical oxygen Demand ,(BOD) is a measure of organic material present in water.BOD value less than 5 ppm indicates a…
6 years ago
Which of the following practices will not come under green chemistry
Which of the following practices will not come under green chemistry Options (a) If possible,making use of soap made of…
6 years ago
Which of the following statements is incorrect
Which of the following statements is incorrect Options (a) Textile workers suffer from white lung disease (b) Coal miners suffer…
6 years ago
Which of the following is the coldest region
Which of the following is the coldest region Options (a) Troposphere (b) Mesosphere (c) Stratosphere (d) Thermosphere Correct Answer: MesosphereExplanation:No…
6 years ago
Classical smong is found in
Classical smong is found in Options (a) winter during morning time (b) winter during day time (c) summer during day…
6 years ago