Question

Warm ocean surge of Peru current recurring every 5-8 years or so in the East Pacific of South America is widely known as
A. Gulf Stream
B. Aye Aye
C. El Nino
D. Magnox

Answer 1

Hint: Warm ocean surge refers to the formation of warm ocean band and it develops on the coast of Peru. It can cause a shift in the climatic conditions of the place. As a result, western pacific have high air pressure and eastern pacific have lower air pressure.

Complete answer: El Nino is a band of warm ocean water which develops in central and east-central equatorial Pacific. ENSO (El Nino –Southern Oscillations) consists of two phases namely the warm phase called El Nino and cool phase known as La Nin. El Nino ran southwards along the Peru coast and Ecuador. Warming of ocean surface temperature in the central and eastern tropical Pacific ocean which shifts atmospheric rainfall and tropical cyclones to the Pacific ocean from Indonesia, India and Australia. The weakening of low-level surface trade winds and these winds starts blowing from one direction to the other. El Nino affects global climate and causes intense storms in some areas and drought and the other.
i. Gulf stream refers to strong ocean current and it brings warm water from the Gulf of Mexico to the Atlantic ocean. It influences climatic conditions and can also lead to the formation of strong cyclones within the atmosphere or ocean.
ii. Aye-Aye are dark brown animals. It has a bushy tail larger than their body. They have big eyes, fingers and a sensitive ear. They are native to Madagascar. They are the largest nocturnal primate in the world.
iii. Magnox is used to treat water turbidity. It helps in the removal of hydrogen sulphide, iron and manganese compounds from water.
Hence, the correct answer is option C.

Note: El Nino may have led to the demise of the Moche and other pre-Columbian Peruvian cultures. A recent study suggests a strong El Nino effect between 1789 and 1793 caused poor crop yields in Europe, which in turn helped touch off the French Revolution.