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The presence of certain pollutants can accelerate the breakdown of the ozone. What is the reason that the depletion of ozone affects human health, food productivity, and climate?

The presence of certain pollutants can accelerate the breakdown of the ozone. What is the reason that the depletion of ozone affects human health, food productivity, and climate? Correct Answer The ozone works as an effective screen for UV light.

The correct answer is That ozone works as an effective screen for UV light.

Key Points

  • The presence of certain pollutants can accelerate the breakdown of the ozone. The ozone works as an effective screen for UV light is the reason that the depletion of ozone affects human health, food productivity, and climate.
  • Ozone-depleting substances (ODS) include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, and carbon tetrachloride, hydro Bromo fluorocarbons, chlorobromomethane, and methyl chloroform.
  • The ozone layer in the stratosphere is affected by the increase in the atmospheric concentration of CFC (chlorofluorocarbons).
  • In the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which can destroy ozone molecules.
  • CFCs are the main reason for the Ozone hole or depletion of the Ozone layer.
  • The other reasons for ozone depletion are a wide range of industrial and consumer applications, mainly refrigerators, air conditioners (hydrochlorofluorocarbons (HCFCs), and fire extinguishers.
  • Chlorofluorocarbons (CFCs) are non-toxic, non-flammable chemicals containing atoms of carbon, chlorine, and fluorine.
  • They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, solvents, and refrigerants.
  • Carbon tetrachloride (CCI) is most often found in the air as a colourless gas and causes Ozone depletion.
  • It is not flammable and does not dissolve in water very easily.
  • CCl4, which was banned worldwide in an update to the Montreal Protocol in 2010.
  • Halon is a liquefied, compressed gas that stops the spread of fire by chemically disrupting combustion.
  • The most commonly used halons are halon-1211 (CBrCIF2), halon-1301 (CBrF3), and halon-2402 (C2Br2F4).
  • They have an extremely high potential for ozone depletion and are ten times more potent than chlorofluorocarbons (CFCs).

Additional Information

  • The Negative Effects of the ozone hole are certain types of skin cancers, eye cataracts, and immune deficiency disorders.
  • Ozone depletion is greatest near the poles.
  • Ozone depletion is greatest at the South Pole (Antarctica).
  • The ozone layer is a natural layer of gas in the upper atmosphere that protects humans and other living things from harmful ultraviolet (UV) radiation from the sun.
  • The ozone layer exists in the stratosphere, a layer 10 to 50 km above the Earth's surface.
  • The international community established the Montreal Protocol on ozone-depleting substances in 1987, to address the destruction of the ozone layer.
  • The greenhouse gases are Carbon dioxide (CO2), methane (CH4), Nitrous oxide (N2O), Fluorinated gases, ozone (O3), and water vapor (H2O).

Related Questions

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