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Question

Ozone layer is responsible for preventing harmful UV rays to enter the earth's atmosphere. Which of the hydrocarbons is/are not responsible for depletion of the ozone layer?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Asphalt

Ozone Layer and UV Protection

The ozone layer serves a critical function by absorbing harmful UV rays from the sun, preventing them from reaching Earth's surface and causing damage.

Ozone Depletion Causes

Certain chemicals used in common products can release substances that deplete the ozone layer. These include:

  • Propellants: Used in aerosol sprays.
  • Refrigerants: Found in refrigerators and air conditioners.
  • Foam-blowing agents: Used in the production of foams for insulation and packaging.

These products often contained or were associated with compounds like chlorofluorocarbons (CFCs), which are known ozone-depleting substances.

Asphalt's Role

Asphalt is a petroleum-based substance primarily used in construction, such as for roads and roofing. Unlike the substances listed above, asphalt does not contain significant ozone-depleting chemicals and is therefore not implicated in the depletion of the ozone layer.

Identifying Non-Responsible Hydrocarbons

Considering the typical applications and chemical compositions, asphalt stands out as not contributing to the destruction of the ozone layer.

Thus, Asphalt is the correct answer as it is not responsible for ozone layer depletion.

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Similar Questions

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Important Questions from Environmental pollution

  1. Photochemical smog is a resultant of the reaction among

  2. Which of the following is NOT responsible for the degradation of our environment?

  3. With reference to furnace oil, consider the following statements:

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  4. Why is there a concern about copper smelting plants?

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    3. They may release sulphur dioxide as a pollutant.

    Select the correct answer using the code given below.

  5. Magnetite particles, suspected to cause neurodegenerative problems are generated as environmental pollutants from which of the following?

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