With reference to Christaller's central place theory, which of the following statements is/are correct? 1. The region must be an isotropic plain with homogeneous purchasing power. 2. Christaller's theory is known as the 'Fixed K' theory. 3. Christaller's theory is known as the 'Variable K' theory.

Which of the following statements with reference to A. T. Mahan is/are correct? 1. He gave more importance to air power than sea power. 2. One of his books is 'The Life of Nelson'.

Consider the following statements with reference to world population: I. Brazil has the highest population among the South American countries. II. Asia continent has the highest growth rate of popula…

Which of the following variable(s) is/are displayed in population pyramids? 1. Age-groups 2. Sex indicators (male and female) Select the correct answer using the code given below:

Which one of the following statements regarding sex composition is not correct?

Consider the following statements: 1. Erok Sim is a festival mainly celebrated by the Santhal community. 2. Sangken is a Buddhist festival celebrated in Arunachal Pradesh. Which of the statements giv…