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Assessment
What is the primary greenhouse gas emitted by human activities?
Carbon Dioxide (CO2)
Methane (CH4)
Nitrous Oxide (N2O)
Ozone (O3)
Which layer of the Earth’s atmosphere contains the ozone layer?
Stratosphere
Troposphere
Mesosphere
Thermosphere
What is the main cause of ocean acidification?
Increased atmospheric CO2 levels
Plastic pollution in the ocean
Overfishing of marine life
Oil spills in coastal waters
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