1. Which among the following statements explains the reason for the presence of major Hot deserts of the world in mid latitudinal region?

  1. The presence of cold ocean currents along the coasts of western margins of the continents prevents rainfall over adjoining landmasses.
  1. High insolation throughout the year but very low precipitation due to descending air in the subtropical high-pressure belt.

Select the correct answer using the codes given below:

 


1. How many terms of the series 1+3+5+ 7+ ... amount to a sum equal to 12345678987654321?

  


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