866: Gypsum is added to the soil?
(a) To increase the alkalinity
(b) To decrease the acidity
(c) To decrease the alkalinity
(d) As an insecticide
867: "From Aceh in the far north-west to Torres Strait in the east is 5000 miles, almost as far as from London to Baghdad. The Archipelago has 14,000 islands, some mere equatorial rocks, others some of the largest in the world". This description best fits
(a) West Indies
(b) Japan
(c) Philippines
(d) Indonesia
868: With reference to the treatment of cancerous tumours, a tool called cyberknife has been making the news. In this context, which one of the following statements is not correct ?
(a) It is a robotic image guided system
(b) It delivers an extremely precise dose of radiation
(c) It has the capability of achieving sub-millimetre accuracy
(d) It can map the spread of tumour in the body
869: The correct sequence of different layers of the atmosphere from the surface of the Earth upwards is
(a) Troposphere, Stratosphere, Ionosphere, Mesosphere
(b) Stratosphere, Troposphere, Ionosphere, Mesosphere
(c) Troposphere, Stratosphere, Mesosphere, Ionosphere
(d) Stratosphere, Troposphere, Mesosphere, Ionosphere
870: Cognizable offence refers to an offence where:
(a) Arrests can be made without warrant.
(b) Arrests can be made with warrant.
(c) It is under the jurisdiction of a court.
(d) Police can register a case without formal complaint.