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Consider the Following Statements i. Chlorofluorocarbons (CFCs) are phased out to protect the Ozone Layer. ii. An agreement to phase out CFCs was agreed and it was called the Montreal Protocol. iii. The Ozone layer absorbs UV Rays.

Consider the Following Statements i. Chlorofluorocarbons (CFCs) are phased out to protect the Ozone Layer. ii. An agreement to phase out CFCs was agreed and it was called the Montreal Protocol. iii. The Ozone layer absorbs UV Rays. Correct Answer i, ii, iii are True

  • Chlorofluorocarbons (CFCs) are phased out to protect the Ozone Layer.
  • When Chlorofluorocarbons are exposed to UV rays, Chlorine-carbon bond present in CFCs breakdown releasing chlorine gas which in turn reacts ozone, causing its disintegration. 
  • In the year 1987, the Montreal Protocol was signed by the countries all over to world to phase out Chlorofluorocarbons.
  • The ozone layer protects life on earth by absorbing UV coming from the sun.

Related Questions

Which assumptions are implied from the below statement? Statement: Ozone layer depletion is caused by excessive Chlorofluorocarbons which are majorly emitted by refrigerants and air conditioners. Assumptions: I: Reducing the use of refrigerants and air conditioners will protect the ozone layer. II: The ozone layer is beyond saving now.
Consider the following statements: 1. Ozone is found mostly in the Stratosphere. 2. Ozone layer lies 55 - 75 km above the surface of the earth. 3. Ozone absorbs ultraviolet radiation from the Sun. 4. Ozone layer has no significance for life on the earth. Which of the above statements are correct?
Consider the following statements  1. Montreal Protocol was signed in 1987 for Ozone layer depletion protection. 2.World Ozone day is celebrated on 22nd March. 3.Ozone is a Greenhouse gas responsible for Global Warming. Which of the statements given above is/are correct?
A multilateral fund for implementation of Montreal Protocol was set up to provide financial and technical assistance to developing countries, parties to Montreal protocol, whose annual per capita consumption and production of ozone depleting substances amounted to less than  
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Study of the following pairs Treaty Field 1. Montreal Protocol Treaty to protect ozone layer 2. Basel Convention Treaty for Bio Diversity conservation 3. Kyoto Protocol  Update on convention of climate change 4. Vienna convention Treaty to control Sulphur Emissions Which of the above pairs are correctly matches?
_________ is the first country to have phased out the CFCs and HCFCs which are responsible for the depletion of the ozone layer.
Which of the following statements are correctly matched: 1. Kyoto Protocol – Greenhouse gas reduction 2. Montreal Protocol- Conservation of the ozone layer 3.Brundtland Commission – Environmental problems Choose the correct code-
Consider the following statements regarding depletion of the ozone layer: 1. Excessive release of chlorine and bromine in the environment from man-made compounds, such as chlorofluorocarbons. 2. Occurrence of certain natural phenomena such as sunspots, and stratospheric winds. 3. Degradation of materials by ultra-violet radiation 4. Major volcanic eruptions. Which of the above can be categorized as causing ozone depletion?
Some small cubes of same height 7 cm but variable length and width are put inside a large cuboid of height 21 cm. Length and width of cuboid is 32 cm and 24 cm, respectively. Small cubes are put such that cubes at the bottom most layer is of similar base area; second layer contains all the cubes of similar base area and third layer have all the cubes of similar base area. Which of the following statement(s) given below is / are TRUE? A: If side of each small cubes at bottom most layer is 8 cm, then maximum number of small cubes that can be put at bottom most layer is 12. B: If maximum of 48 cubes can be put at second layer, then side of each cube at second layer is 6 cm. C: If side of each small cubes at third layer is 1.6 cm, then maximum number of small cubes that can be put at third layer is 300.