Ozone is a secondary pollutant, meaning it is not emitted directly but is formed in the atmosphere through chemical reactions between primary pollutants (like nitrogen oxides and volatile organic compounds) in the presence of sunlight.
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The Arctic Oscillation is a large-scale pattern of sea level pressure differences between the Arctic and the rest of the Northern Hemisphere.
Explanation:
The jet stream is a narrow, fast-flowing air current in the upper atmosphere that flows from west to east and significantly influences weather patterns around the world.
Explanation:
The Labrador Current is a cold ocean current that flows south along the eastern coast of Canada. It brings cold water and icebergs into the North Atlantic.
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