A positive Indian Ocean Dipole event is associated with:
A. Warmer than normal waters in the western Indian Ocean
B. No change in sea surface temperatures
C. Cooler than normal waters in the western Indian Ocean
D. Warmer than normal waters in the eastern Indian Ocean
Answer: Option A
Solution (By JKSSB Mock Tests)
A positive IOD event is characterized by warmer than normal sea surface temperatures in the western Indian Ocean and cooler than normal in the east. This often leads to increased rainfall over East Africa and reduced rainfall over Indonesia and Australia.
Explanation:
Cold fronts are characterized by a steep temperature gradient (rapid temperature drop), strong winds, heavy rain, and thunderstorms, and they move faster than warm fronts.
Explanation:
The 'Medieval Warm Period' (roughly 950-1250) was a period of relatively warm conditions in the North Atlantic region, likely due to increased solar activity and reduced volcanic activity.
Explanation:
The thermosphere is characterized by increasing temperature with altitude due to the absorption of solar radiation, making it the hottest layer.
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