Advertisements
Advertisements
प्रश्न
What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer?
उत्तर
In 1987, in an attempt to protect the ozone layer, the UNEP forged an agreement among its member countries to freeze the production of chlorofluorocarbons at 1986 levels.
APPEARS IN
संबंधित प्रश्न
Write the full name of CFC.
Give one harmful effect of CFC.
How does ozone layer protect us from harmful effects in the environment?
The depletion of ozone layer in the upper atmosphere is mainly due to the emission of :
(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
State two effects of ozone depletion.
True or False:
Ozone in the Troposphere is a harmful pollutant.
Name the chemicals responsible for destruction of the ozone layer. State the main chemical from these chemicals, which is responsible for more than 80% ozone depletion.
State how CFCs break ozone in the stratosphere.
Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
