alleryWhy do HFCs not damage the ozone layer, unlike CFCs?
AThey are heavier than air
BThey break down very fast
CThey contain no chlorine
DThey contain no fluorine
Answer & Solution
Correct answer: C. They contain no chlorine
Chlorine atoms released from CFCs destroy ozone, and HFCs have none, though they remain greenhouse gases.
Keep practising Conservation
Browse all Conservation questions for RRB NTPC, or explore more Environment topics.
Related questions
Which years did the Kyoto Protocol's first commitment period cover?On what date did the Kyoto Protocol come into effect?Which two chemists proposed in 1974 that CFCs could damage the ozone layer?On what date was the Montreal Protocol on ozone-depleting substances agreed?On which date is World Wetlands Day observed each year?The Ramsar Convention on wetlands was signed in which year?The 2002 amendment set the minimum jail term for Schedule I offences at what length?Before the 1972 Wild Life Act, how many national parks did India have?