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Question

Which type of 'Pollution Control Devices' are fitted into automobiles for reducing the emission of poisonous gases?

The correct answer is
Catalytic converters

The question asks which type of pollution control devices are fitted into automobiles to reduce the emission of poisonous gases. Let's analyze each option to find the correct answer:

  1. Electrostatic Precipitators: These devices are mainly used in industrial settings to remove particulate matter from exhaust gases. They are effective in power plants and factories, not specifically for automobiles.
  2. Catalytic Converters: These devices are installed in vehicles to convert harmful gases from the engine's exhaust into less harmful emissions. They transform gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into carbon dioxide, water, and nitrogen. This makes them the appropriate choice for reducing automobile emissions. Therefore, Catalytic \, converters are indeed the pollution control devices fitted into automobiles.
  3. Cyclone Separators: These are also used in industrial settings to remove larger particles from air or gas streams. They do not address the gaseous pollutants emitted by vehicle exhausts.
  4. Fabric Filters: Mainly used in industrial pollution control for removing particulate matter from gases. Similarly, they aren't suitable for automobiles.

From the above analysis, it's evident that Catalytic Converters are the devices used in automobiles specifically for reducing the emission of poisonous gases. This aligns with the specified correct answer.

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Important Questions from Environmental pollution

  1. Which one of the following is a major environmental issue in eastern Canada?

  2. One of the main causes of air pollution in cities is emissions from vehicles like cars and trucks. Cars emit various pollutants which are bad for human health when inhaled, like

    1) Nitrogen oxides (NO x)

    2) Carbon monoxide (CO)

    3) Carbon dioxide (CO 2)

    4) Benzene

    Which of the above pollutants are not tolerated by human beings even at very low levels?
  3. Which of the following substances are harmful for health if present in food items?

    1) Pesticide residues

    2) Lead

    3) Metanil yellow

    4) Mercury

    Select the correct answer using the code given below:

  4. Which of the commonly used household item(s) release Bisphenol A (BPA) which is an endocrine disruptor and bad for human health?

    1. Steel utensils

    2. Plastic coffee mugs

    3. Aluminium utensils

    4. Plastic water storage bottles

    Select the correct answer using the code given below:
  5. Which one of the following is a cause of acid rains?

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