In 1987, an agreement was formulated by the United Nations Environment Programme (UNEP) to freeze the production of “X” to prevent depletion of “Y”. “X” and “Y respectively referred here are:
(a) Ozone; CFCs
(b) CFCs; rays UV
(c) CFCs; Ozone
(d) UV rays; Diatomic oxygen
Answer:
(c) CFCs, Ozone
Chlorofluorocarbons (CFCs) are the gases used in aerosols, refrigerators etc. they are responsible for thinning of the ozone layer in the atmosphere. So, in 1987, The United Nations Environment Program formulated an agreement to freeze the production of Chlorofluorocarbons to prevent the depletion of ozone
