1.

Ozone layer is being depleted. This is due to :A. NO emission from supersonic jetsB. chloroflurocarbon used as aerosolsC. both A and BD. none of the above

Answer» (A) `O_(3) + NO rarr NO_(2) + O_(2)`
(B) `{:(Cl_(2) CF_(2) rarr .^(*)(Cl) + .^(*)C CIF_(2) ,,,.^(*)Cl + O_(3) rarr ClO^(*) + O_(2)),(ClO^(*) rarr Cl^(*) + O^(*),,,ClO^(*) + O^(*) rarr .^(*)Cl + O_(2)):}`


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