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Photochemical smog always contains

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Important Questions on Environmental Issues

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The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false?
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Which company is providing CNG in Surat?
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Given below are two statements:

Statement I: In a scrubber, the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.

Statement II: Particulate matter (PM 2.5) cannot be removed by a scrubber but can be removed by an electrostatic precipitator.

In the light of the above statements, choose the most appropriate answer from the options given below:

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The device which can remove particulate matter present in the exhaust from a thermal power plant is:
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Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to
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Which of the following is a secondary pollutant?
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Match the following
  Pollutant   Control
(A) Particulates (I) Catalytic converters
(B) Emissions of automobiles (II) Incinerators
(C) Sulphur dioxide (III) Electrostatic precipitator
(D) Hospital wastes (IV) Cooling towers
    (V) Scrubbers

The correct match is

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Match the following

  List-I   List-II
(A) Hospital wastes (I) Electrostatic precipitators
(B) SO2 pollution (II) Catalytic converters
(C) Particulates (III) Scrubbers
(D) Automobile exhausts (IV) Biotoilets
    (V) Incinerators
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Air (Prevention and Control of Pollution) Act was amended in 1987 to include among pollutants:
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According to Supreme Court of India, ruling with respect to 'Bharat Stage VI' Norms, from which date, these are supposed to be implemented in the country?
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Which one of the following statements is not valid for aerosols?
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A scrubber in the exhaust of a chemical industrial plant removes:
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Acid rain is caused by the increase in the atmospheric concentration of :
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The most hazardous metal pollutant of automobile exhaustion is:
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Which of the following is an exhaustible source of energy?
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Assertion: Euro II norms are framed to reduce the content of CO and aromatic compounds from fuels.

Reason: These compounds lead to reduced visibility and carboxyhemoglobin formation.
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Which plant has maximum power of absorbing CO2  and oxides of nitrogen in a polluted area?
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Among the following which one causes maximum indoor chemical pollution?
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Which one of the following fuels causes minimum environmental pollution?
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The products resulting from atmospheric reactions of hydrocarbons and nitrogen oxides in the presence of sunlight are called: