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Consider the following statements:

  1. El-Nino causes a reduction in nutrient-rich upwelling, leading to marine biodiversity loss.

  2. The El-Nino phenomenon stabilizes trade winds, reducing rainfall variability.

A1 only

B2 only

CBoth 1 and 2

DNeither 1 nor 2

Answer:

A. 1 only

Read Explanation:

  • El-Nino reduces upwelling, impacting marine food chains, but it weakens trade winds, not stabilizes them.


Related Questions:

Which of the following statements are correct?

  1. The tropical easterly jet has a maximum speed of about 90 kmph in June.

  2. The easterlies are significant for rainfall during southwest monsoon.

  3. The subtropical westerly jet is more active during summer months.

Which of the following are the reasons for rainfall during winters in north-western part of India?

Consider the following:

  1. El-Nino affects only South America and India.

  2. El-Nino occurs at regular intervals of exactly five years.

  3. El-Nino is associated with major climatic disruptions worldwide.

Choose the correct statement(s) about the 'breaks' in monsoon rainfall.

  1. 'Breaks' are rainless intervals during the monsoon season.
  2. 'Breaks' are primarily caused by the weakening of the southwest monsoon.
  3. 'Breaks' are related to cyclonic depressions in the Bay of Bengal.
    നവംബർ മുതൽ മാർച്ച് വരെയുള്ള ഇന്ത്യയിലെ കാർഷിക കാലാവസ്ഥ ഏതാണ് ?