61. The study of viruses is known as ?
Virology
62. Amravati, Bhavani, Hemavati and Kabini are tributaries of which river?
Cauvery
63. Economists have divided economy into three sectors namely?
1 Primary sector 2 Secondary sector 3Tertiarysector (Service sector)
64. Which civilization is considered to be the world's first urban civilisation ?
Mesopotamian civilization
65. Kabul is on the bank of which River?
Kabul
66. If an ideal gas is isothermally expanded, what will its internal energy?
Remain the same
67. In which year Pincode system was started in Kerala?
gust 15 (B) 1972
68. What is the motto of the Kerala Police force?
ridhu bhava dhruda krithye' which means 'soft in Temperament
69. Who constructed the 'Nedumkotta' or 'Travancore lines' in central Kerala in central Kerala to prevent the Mysore invasion?
Dharmaraja
70. Who is the author of SpanishTragedy ?
Thomas Kyd