CONTAINS THE FOLLOWING STATEMENTS :
I) LORD MOUNTBATTEN WAS THE FIRST GOVERNAR GENERAL OF FREE INDIA
II) RAJAGOPALCHARI WAS THE FIRST INDIAN GOVERNAR GENERAL OF
FREE INDIA
III) RAJAGOPALCHARI WAS THE LAST GOVERNAR GENERAL OF FREE INDIA
IV) VALLABAI PATEL SCCEEDED C.RAJAJI AS GOVERNER GENERAL
. Which radioactive pollutant has recently drawn the
attention of the public, due to its occurrence in the
building material?
(a) Plutonium
(b) Thorium
(c) Radon
(d) Radium