Read the passage carefully and choose the best answer to each question out of the four alternatives.
The problem of water pollution by pesticides can be understood only in context, as part of the world to which it belongs- the pollution of the total environment of making. The pollution entering our waterways comes from many sources, radioactive wastes from reactors, laboratories, and hospitals; fallout from nuclear explosions; domestic wastes from cities and towns; chemical wastes from factories. To these is added a new kind of fallout the chemical sprays applied to crop lands and gardens, forests and fields. Many of the chemical agents in this alarming melange initiate and augment the harmful effects of radiation, and within the group of chemicals themselves there are sinister and little- understood interactions, transformations, and summations of effect.
Even since the chemists began to manufacture substances that nature never invented, the problems of water purification have become complex and the danger to user of water has increased. As we have seen, the production of these synthetic chemicals in large volume begin in the 1940’s. It has now reached such proportion that an appalling deluge of chemical pollution is daily poured into the nation’s waterways. When inextricably mixed with domestic and other wastes discharged into the same water, these chemicals sometimes defy detection by the methods in ordinary use by purification plants. Most of them are so complex that they cannot be identified. In rivers, a really incredible variety of pollutants combine to produce deposits that sanitary engineers can only despairingly refer to as “gunk”.

Water pollution can only be understood

(DIRECTIONS 11): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Deriving your authority from the government , your position would secure the respect and consideration of everyone, especially in a service where official rank carries so much weight. This would secure you every attention and comfort on your way and there, together with a complete submission to your olders. I know these things are a matter of indifference to you expect so far as they may further, the great objects you have in view, but they are of important in themselves, and of every importance to  those who have a right to take interest in your personal position and comfort.
The above passage speaks about?

(DIRECTIONS 13): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Deriving your authority from the government , your position would secure the respect and consideration of everyone, especially in a service where official rank carries so much weight. This would secure you every attention and comfort on your way and there, together with a complete submission to your olders. I know these things are a matter of indifference to you expect so far as they may further, the great objects you have in view, but they are of important in themselves, and of every importance to  those who have a right to take interest in your personal position and comfort.
Passage talked about whom?

(DIRECTIONS 17): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Indian airlines had no positive response to the incident occurred in the failure of aeroplane engine.It was 1989 ,Indian airline B059 got crashed in the middle of the Indian ocean,205 passengers were died.There were no clues about the B059 , some says that it got crashed but some said it got lost.Passengers relative were worried about their dear ones. Government decleared the issue of B059 as a priority,Indian navy were given responsibility to find the B059 but nothing was found .After a year some fishermen found the black box of B059, which confirms about the crash of Indian aeroplane B059 due to engine failure.
Who got the responsibility to find out clues about B059?

Read the following passage carefully and give the answer of the questions.
When you buy a car, examine carefully the important features of the model you are considering. Many a buyer of the latest model has got into trouble by buying  a car too broad or too long for his garage. Further more, a long car is too hard to manage in traffic and too difficult to park. Another feature is the comfort afforded. Are the seats nice and durably upholstered? Is there enough glass to give the driver a god view in all directions, particularly to the rear? It should be remembered that the heavier and the powerful car is, the more expensive it will be to operate. High powered motors, require expensive high-octane petrol. The greater weight means greater tyre wear and enlarged brakes. The old cliche is still true, it is not the initial cost but the upkeep which matters.
According to this passage, the two factors that the buyer of a new car should keep in mind are

A vexed problem facing us is the clamour to open more colleges and to reserve more seats for backward classes. But it will be a sheer folly to expand such facilities recklessly without giving any thought to the quality of education imparted. If admissions are made far more selective, it will automatically reduced the number of entrants. This should apply particularly colleges, many of which are little more than degree factories. Only then can the authorities hope to bring down the teacher-student ratio to manageable proportion. What is more, teachers should be given refresher courses, every summer to brush up their knowledge. Besides, if college managements increase their library budget it will help both the staff and the to new students a great deal. 
At the same time, however, it will be unfair to deny college education to thousands of young men and women, unless employers stop insisting on degrees even for clerical jobs. For a start, why can't the Government disqualify graduates from securing certain jobs, say class III and IV posts? Once the link between degrees and jobs is severed at least in some important departments, in will make young people think twice before joining college. 

The phrase “Vexed problem” means

There are three main groups of oils-animal, vegetable and mineral. Great quantities of animal oil come from whales, creatures of the sea, which are the largest of the animals remaining in the world. To protect the whales from the cold of the Artic seas, nature has provided them with a thick covering of fat, called blubber. When the whale is killed, the blubber is stripped off and boiled down. It produces a great quantity of oil which can be made into food for human consumption. A few other creatures yield oil, but none so much as the whale. The livers of the cod and halibut, two kinds of fish, yield nourishing oil. Both cod liver oil and halibut oil are given to sick children and other invalids who need certain vitamins. 
Vegetable oil has been known from very old times. No household can get on without it, for it is used in cooking. Perfumes may be made from the oils of certain flowers. Soaps are made from eatable and animal products and the oils of certain flowers. 

Vegetable oil is mainly used for – 

Read the following passage carefully and answer the questions given below it. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions.

In the second week of August 1998, just a few days after the incidents of bombing the US embassies in Nairobi and Dar-es-Salaam, a high-powered, brain-storming session was held near Washington D.C., to discuss various aspects of terrorism. The meeting was attended by ten of America’s leading experts in various fields such as germ and chemical warfare, public health, disease control and also by the doctors and the law-enforcing officers. Being asked to describe the horror of possible bio-attack, one of the experts narrated the following gloomy scenario. A culprit in a crowded business centre or in a busy shopping mall of a town empties a test tube containing some fluid, which in turn creates an unseen cloud of germ of a dreaded disease like anthrax capable of inflicting a horrible death within 5 days on any one who inhales it. At first 500, or so victims feel that they have mild influenza which may recede after a day or two. Then the symptoms return again and their lungs start filling with fluid. They rush to local hospitals for treatment, but the panic-stricken people may find that the Medicare services run quickly out of drugs due to excessive demand. But no one would be able to realise that a terrorist attack has occurred. One cannot deny the possibility that the germ involved would be of contagious variety capable of causing an epidemic. The meeting concluded that such attacks, apart from causing immediate human tragedy, would have dire long-term effects on the political and social fabric of a country by way of ending people’s trust on the competence of the government. The experts also said that the bombs used in Kenya and Tanzania were of the old-fashion variety and involved quantities of high explosives, but new terrorism will prove to be more deadly and probably more elusive than hijacking an aeroplane or a gelignite of previous decades.
According to Bruce Hoffman, an American specialist on political violence, old terrorism generally had a specific manifesto - to overthrow a colonial power or the capitalist system and so on. These terrorists were not shy about planting a bomb or hijacking an aircraft and they set some limit to their brutality. Killing so many innocent people might turn their natural supporters off. Political terrorists want a lot of people watching but not a lot of people dead. “Old terrorism sought to change the world while the new sort is often practised by those who believe that the world has gone beyond redemption”, he added. Hoffman says, “New terrorism has no long-term agenda but is ruthless in its short-term intentions. It is often just a cacophonous cry of protest or an outburst of religious intolerance or a protest against the West in general and the US in particular. Its perpetrators may be religious fanatics or diehard opponent of a government and see no reason to show restraint. They are simply intent on inflicting the maximum amount of pain on the victim.”

Choose the word which is most nearly the SAME in meaning of the word printed in bold as used in the passage.
perpetrators