646: In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason?
(a) Sea surface temperatures are low
(b) Inter-Tropical Convergence Zone seldom occurs
(c) Coriolis force is too weak
(d) Absence of land in those regions
647: Who among the following, was the President of the All-India States Peoples Conference in 1939 ?
(a) Jaya Prakash Narayan
(b) Jawaharlal Nehru
(c) Sheikh Abdullah
(d) Sardar Vallabhbhai Patel
648: Who among the following is said to have witnessed the reigns of eight Delhi Sultans?
(a) Ziauddin Barani
(b) Shams-i-Siraj Afif
(c) Minhaj-us-Siraj
(d) Amir Khusrau
649: A "closed economy" is an economy in which
(a) Only exports take place
(b) Neither exports nor imports take place
(c) Deficit financing takes place
(d) The money supply is fully controlled
650: In the well-known Lawn Tennis doubles team, Max Mirnyi's the partner of Mahesh Bhupati, comes from which of the following countries?
(a) Italy
(b) Sweden
(c) Belarus
(d) Croatia