781: A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existence is threatened due to the destruction of its habitat. Which one of the following could be that animal?
(a) Indian gazelle
(b) Indian wild ass
(c) Indian wild boar
(d) Indian wild buffalo
782: A wooden block is floating in water. If 4/5 of its volume is immersed in water and volume of the water displaced is 800 ml, the volume of the block is
(a) 1140 ml
(b) 200 ml
(c) 800 ml
(d) 1000 ml
783: Acts and Regulations validated by Article 31 B are specified in ......... of the Constitution:
(a) Concurrent List
(b) State List
(c) Union List
(d) Ninth Schedule
784: One mole of hydrogen gas burns in excess of oxygen to give 290 kJ of heat. What is the amount of heat produced when 4g of hydrogen gas is burnt under the same conditions ?
(a) 145 kJ
(b) 290 kJ
(c) 580 kJ
(d) 1160 kJ
785: Which of the following pairs is not correctly matched?
(a) Arjun : Indigenously produced Main Battle Tank (MBT)
(b) Phalcon : Cruise missile supplied by Russia to India
(c) Saras : Indigenously developed civilian passenger aircraft
(d) Operation : New Indian Naval Base at Karwar Seabird