ozone depletion
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The gradual thinning of the layer of ozone gas in the upper atmosphere that protects the earth from harmful ultraviolet radiation.
Test yourself
Which word fits the gap? "International agreements to phase out certain chemicals have slowed _____ significantly since the 1980s."
Answer: ozone depletion
In your own words, what does "ozone depletion" mean?
The gradual thinning of the layer of ozone gas in the upper atmosphere that protects the earth from harmful ultraviolet radiation.
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