1.

In April 2020, which of the following has confirmed that the largest hole in the Ozone layer above the Arctic has closed?

A. Copernicus Climate Change Service
B. Copernicus Atmosphere Monitoring Service
C. The Climate Group
D. Both 1 and 2
E. All 1, 2 and 3
Answer» E. All 1, 2 and 3


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