What is ozone? How is ozone formed? How does ozone layer protect us from the harmful effects in the environment? Write the full form of CFC. What harm can they do?
(a) What is ozone ? How is it formed ? (b) How does ozone layer protect us from harmful effects in the environment ? (c) What is UNEP ? What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer ?
Ozone layer protect earth surface from
How is ozone layer useful to us ?
Write the full form of CFC. Give its one harmful effect.
How is ozone formed in the atmosphere?
The ozone layer protects us from ______ radiation.
LAKHMIR SINGH & MANJIT KAUR-TEST PAPER 2-Section B