Biology · Ecology
Ozone concentration in the atmosphere is measured in Dobson units (DU). An ozone hole is defined to occur when the concentration of ozone falls below 220 DU. Consider three study sites: A (Arctic region), B (Tropical region), and C (Antarctic region). The table below shows values of ozone concentrations recorded at these sites for two dates in 2009: S.No. 30 March 2009 30 Sept 2009 i. 270 DU 290 DU ii. 400 DU 240 DU iii. 450 DU 420 DU iv. 250 DU 110 DU Which one of the following options represents the correct matches between the study sites and the recorded ozone values?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A - i; B - ii; C - iii
- 2A - ii; B - i; C - iv✓
- 3A - ii; B - iii; C - i
- 4A - i; B - iii; C - iv
Correct answer
A - ii; B - i; C - iv
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