776: When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because
(a) Water from soil cannot rise to aerial parts
(b) Roots are starved of energy
(c) Tree is infected by soil microbes
(d) Roots do not receive oxygen for respiration
777: The persons start walking at a steady pace of 3 km/hour from a road 1 intersection along two roads that make an angle of 60° with each other. What will be the (shortest) distance separating them at the end of 20 minutes ?
(a) 3 km
(b) 2 km
(c) 1.5 km
(d) 1 km
778: Consider the following statements in respect of financial emergency under Article 360 of the Constitution of India:
1. A Proclamation of financial emergency issued shall cease to operate at the expiration of two months, unless before the expiration of that period it has been approved by the resolution of both houses of Parliament.
2. If any proclamation of financial emergency is in operation, it is competent for the president of India to issue directions for the reduction of salaries and allowances of all or any class of persons serving in connection with the affairs of the Union but excluding the Judges of the Supreme Court and the High Courts.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
779: Which one of the following was the largest IT software and services exporter in India during the year 2002-03?
(a) Birlasoft
(b) Infosys Technologies
(c) Tata Consultancy Services
(d) Wipro Technologies
780: There are 10 identical coins and each one of them has H engraved on its one face and T engraved on its other face. These 10 coins are lying on a table and each one of them has H face as the upper face.
In one attempt, exactly four (neither more nor less) coins can be turned upside down. What is the minimum total number of attempts in which the T faces of all the 10 coins can be brought to be the upper faces ?