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प्रश्न
In 1987, the United Nations Environment Programme (UNEP) forged an agreement to freeze the production of a certain chemical to the year 1986 level. Name the chemical and the manufacturing companies m which this chemical was being mostly used.
In what way this chemical damage -
- the upper layers of the atmosphere and ultimately
- the organisms on the earth.
उत्तर
The United Nations Environment Programme (UNEP) was successful in negotiating a deal in 1987 to maintain the 1986 level of CFC production. All manufacturing firms are now required to produce CFC-free refrigerators on a global scale. The primary factor for the ozone layer to thin out is chlorofluorocarbons or CFCs. Chlorofluorocarbons (CFC) are gases used in a variety of products, such as aerosol sprays, solvents, and refrigerants.
- UV rays degrade the chlorofluorocarbon molecules in the stratosphere and release chlorine atoms as a result. Ozone is destroyed when these atoms interact with it.
The ozone layer is at risk due to the usage of chemicals like CFCs. This might harm the ecosystem since the ozone layer shields humans from the sun's UV rays. - These UV rays are extremely harmful to living things; for humans, they are known to cause skin cancer. Strong UV radiation may prevent plants from growing, blooming, or performing photosynthesis. The detrimental effects of UV light must also be endured by the woodlands.
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संबंधित प्रश्न
What is the function of ozone in the upper atmosphere?
How does ozone affect any ecosystem?
With the help of a flow diagram, describe how energy from the sun flows through various trophic levels.
What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer?
Which pollutant released into the air during refrigeration and airconditioning is the greatest contributor to the depletion of ozone layer?
(a) BHC
(b) DDT
(c) CFC
(d) UNEP
State the role of chlorofluorocarbons in ozone destruction or depletion [no equations required].
Bad ozone is present in ______
Which of the following may be a conclusion of the excessive exposure of humans to sun’s ultraviolet rays?
- Peptic ulcers
- Eye disease like cataract
- Damage to lungs
- Skin cancer
The substance which is chiefly responsible for the depletion of ozone layer is ______.
Depletion of ozone is mainly due to