What is the effect of ozone depletion?(Please select one answer)
A. More dangerous UV from solar radiation reaches the biosphere
B. The global atmosphere becomes lighter and thus expands more into space
C. The global atmosphere is more in danger of being swept away by solar winds
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Ozone depletion will increase if …(Please select one answer)
A. More Chloroflourocarbons (CFCs) and similar synthetic compounds are emitted
B. Atmospheric CO2 concentrations rise
C. Deforestation continues to increase
Where in the world is the most severe ozone depletion?(Please select one answer)
A. Over Antarctica
B. Over hot equatorial regions
C. In urban environments
Over the past 200 years, ocean uptake of CO2 has ________________ the effects of climate change.
Accelerated
B. Moderated
Cancelled out
D. Masked
Does ocean acidification have the same impact across the entire ocean?(Please select one answer)
A. Yes, because it is caused by an increase of atmospheric CO2, which affects oceans globally in the same way
B. No, because acidification mostly affects corals in tropical waters
C. Yes, because upwellings* blend alkaline and acidic waters
D. No, because water temperature and oxygen saturation influence the rate of acidification
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