Question

Temperature variation in the Pacific Ocean in present time is called
(a)Cyclone
(b)El Nino Effect
 (c)Greenhouse Effect
(d)None of the above

Answer 1

Hint: The effect in which 'Temperature rise leads to odd climatic changes'. These are the trade winds which blow warm water towards the west.

Complete answer:
During every few years, unusually warm currents occur in the South Pacific Ocean of South America. This rise in temperature is due to a relaxation of the trade winds that move the ocean waters throughout the globe. Without the trade winds, the surface waters rate of evaporation decreases, and heat loss slows. With the cooling of the South Pacific disrupted, unusually high temperatures occur along the shores of Chile up to Ecuador. El Nino is a periodic increase in temperature, which fluctuates from a small increment.

Additional Information:
-It generates powerful high-altitude winds that can cut the tops off of tropical storms before they can grow into hurricanes.
-Global warming is intensifying El Nino weather. As humans put more and more heat-trapping gases into the atmosphere, the Earth becomes more warmed. El Nino refers to a short-term period of warm ocean surface temperatures in the tropical Pacific, basically stretching from South America towards Australia, and increment of heat.
So the correct answer is ‘El Nino Effect’.

Note: El Nino is an abnormal or odd weather pattern caused by the warming of the Pacific Ocean near the equator, off the coast of South America. The sun warms the water bodies near the equator, which can make more clouds and thus leading to more rain. However, normally there are trade winds, which will blow that warm water to the west.