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Consider the following statements : a. La Nina is a little girl. b. During the time of La Nina cold water in the ocean rises to the surface. c. La Nina strengthens the Indian monsoon. d. During the time of El Nino, trade winds weaken, and warm water moves east in the ocean. Which of the above statements is/are correct? 

Consider the following statements : a. La Nina is a little girl. b. During the time of La Nina cold water in the ocean rises to the surface. c. La Nina strengthens the Indian monsoon. d. During the time of El Nino, trade winds weaken, and warm water moves east in the ocean. Which of the above statements is/are correct?  Correct Answer All of the above

The correct answer is All of the above.

  • El Nino and La Nina are inversely related to the Indian monsoon.
  • The most prominent droughts in India have been El Nino droughts, for example, droughts of 2014-16. 
  • La Nina causes heavy monsoons in India and Southeast Asia.
  • During an El Nino event, westward-blowing trade winds weaken along the Equator.
    • These changes in air pressure and wind speed cause warm surface water to move eastward along the Equator, from the western Pacific to the coast of northern South America.

Key Points

The warming and cooling of the Pacific Ocean are most important in terms of atmospheric conditions, which can develop two conditions given below: La Nina, El Nino.

 

La Nina

El Nino
Meaning La Nina means The Little Girl in Spanish. El Nino is a Spanish word that means The Little Boy.
Definition Cold ocean surface waters along the coast of Ecuador and Peru. Occasional development of warm ocean surface waters along the coast of Ecuador and Peru.
Effect

Abnormally heavy monsoons in India and Southeast Asia.

Good for fishing.

Drought in Australia and Indonesia. 

Bad for the fishing industry of cost of Peru and Ecuador.

Related Questions

La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino? 1. La Nina is characterized by unusually cold ocean temperature in the equatorial Indian Ocean whereas El Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean. 2. El Nino has an adverse effect on the south-west monsoon of India, but La Nina has no effect on the monsoon climate. Which of the statements given above is/are correct? 
La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino ?
1. La Nina is characterised by un-usually cold ocean temperature in equatorial Indian Ocean whereas El Nino IS characterised by unusually warm ocean temperature in the equatorial Pacific Ocean.
2. El Nino has adverse effect on south-west monsoon of India, but La Nina has no effect on monsoon climate.
Which of the statements given above is/are correct?
 A new type of El Nino called El Nino Modoki appeared in the news. In this context, consider the following statements: 1. Normal El Nino forms in the Central Pacific ocean whereas El Nino Modoki forms in the Eastern Pacific ocean.  2. Normal El Nino results in diminished hurricanes in the Atlantic ocean but El Nino Modoki results in a greater number of hurricanes with greater frequency. Which of the statements given above is/are correct? 
Consider the following statements: 1. The development of an El Niño brings drought to the western Pacific, rains to the equatorial coast of South America, and convective storms and hurricanes to the central Pacific. 2. El Nino and Indian monsoon are inversely related. 3. La Nina refers to the unusual warming of the central and east-central equatorial Pacific Ocean which affects global weather. Which of the statements given above is correct?
Consider the following statements:
1. Tamil Nadu is the only area which receives about half of its rainfall from north-east monsoon winds.
2. Kerala is the only state receiving very heavy rainfall from the south-west monsoon winds.
3. In India, the south-west monsoon is stronger than the north-east monsoon.
Which of these are correct statements?
With regards to the EI- Nino which of the following statement is true? 1  EI- Nino means Child Christ. 2  It is a warm ocean current appearing along the Peru coast, generally in December. 3 The Indian Monsoon is also influenced by EI-Nino 
With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon which of the following statements is/are correct? 1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean. 2. An IOD phenomenon can influence an EI Nino's impact on the monsoon. Select the correct answer using the code given below:
With reference to Ocean currents consider the following statements:
1. West Australian current is a warm current.
2. North East Monsoon Drift flows in the Indian Ocean during winter season.
3. Equatorial counter current does not flow in the Indian Ocean during winter season.
4. Kuroshic current in the Pacific Ocean is like Gulf Stream in the Atlantic Ocean.
Consider the following statements regarding winds 1. The air at ITCZ rises and moves towards poles in the upper atmosphere and sinks near 30 degrees in both hemispheres and then again moves toward the equator at the surface, this cycle is known as Walker Cycle. 2. At polar latitudes the cold dense air subsides near the poles and blows towards middle latitudes as the polar easterlies. This cell is called the polar cell. Which of the statements given above is/are correct?
Which is/are correct about monsoon/s in Kerala? (i) Receives rainfall from North East Monsoon (ii) Receives rainfall from South West Monsoon (iii) Receives rainfall from northwest Monsoon (iv) Receives rainfall from southeast Monsoon