A negative phase of the North Atlantic Oscillation (NAO) is associated with:
A. Stronger than normal Azores High and Icelandic Low
B. Weaker than normal Azores High and Icelandic Low
C. Cooler than normal waters in the North Atlantic
D. Warmer than normal waters in the North Atlantic
Answer: Option B
Solution (By JKSSB Mock Tests)
A negative NAO phase is characterized by weaker than normal Azores High and Icelandic Low, leading to weaker westerly winds, colder and drier winters in northern Europe, and milder and wetter winters in southern Europe.
Explanation:
Thunderstorms form when there is atmospheric instability, meaning warm, moist air near the surface is forced to rise, leading to convection, condensation, and the development of cumulonimbus clouds.
Explanation:
The 'Little Ice Age' (roughly 1300-1850) was a period of cooling in the Northern Hemisphere, thought to be caused by decreased solar activity (sunspot minimums) and increased volcanic eruptions that reduced solar radiation.
Explanation:
The greenhouse effect is the natural process by which certain gases in the atmosphere (greenhouse gases) trap outgoing longwave radiation, warming the Earth's surface and making it habitable.
No comments yet. Be the first to start the discussion!