Multiple choice question

Pollutants are said–
(a) CO 2 , SO 2 , NO 2 etc gases (b) Pb, As, Hg, Zn, Cd compounds
(c) Dust, polyngrains, insecticides (d) All theses are polutants
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Smog is ...........................
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Primary pollutants are ............. and secondary polutants are .................
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Particulates are ........................ thses solid or liquid micro particles are
...............
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Acid rain is .......................
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Depletion of ozone affects ......................
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Green house effect is ................... It ................... the global warming.
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(a) -------------------------------------------------------- (b) -----------------------------------------------------
(c) --------------------------------------------------------
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Give any four measures to check pollution?
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Describe any 4 friut plants which are medicinally useful?
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How portienlates affect human health?
95