Among Nature’s most intriguing phenomena are the partnerships formed by any different species. The name used for these relationships, Symbiosis, comes from Greek meaning "living together". Not all symbiotic relationships are the same. There are some called commensal relationships, in which one partner gains a benefit while the other gains little or none but is not harmed. One example is the relationship between two types of fish remoras and sharks. The remora, which is long and often striped, attaches itself to a shark (sometimes to another type of fish or a whale), using a sucker on its head. When the shark makes a kill, the hitchhiker briefly detaches itself to feed on the scraps. Another type of symbiotic relationship is parasitism, in which one partner benefits at the expense of others. Ticks and tapeworms are among familiar parasites. 

The third type of symbiotic relationship, called mutualism, is a true partnership in which both partners benefit. The relationship may be limited as when zebras and wild best graze together on the vast African grasslands. Each species can survive on its own, but together their chances of detecting predators are improved because each contributes a specially keen sense. (Zebras have the better eyesight;  wild beast, hearing and sense of smell). In a few cases partners are so interdependent that one cannot survive without the other. Most mutualistic relationships probably lie some where in between

Remora feeds 

Direction : Read the following passage carefully and answer the question given below it. Certain words/phrases have been printed in bold to help you locate them while answering some of the question.
 Governments have traditionally equated economic progress with steel mills and cement factories. While urban centers thrive and city dwellers get rich, hundreds of millions of farmers remain mired in poverty. However fears of food shortages, a rethinking of anti-poverty priorities and the crushing recession in 2008 are causing a dramatic shift in world economic policy in favour of greater support for agriculture.
 The last time when the world’s farmer felt such love was in the 1970s. At that time, as food prices spiked, there was real concern that the world was facing a crisis in which the planet was simply unable to produce enough grain and meat for an expanding population. Government across the developing world and international aid organisations plowed investment into agriculture in the early 1970s, while technological breakthroughs, like high-yield strains of important food crops, boosted production. The result was the Green Revolution and food production exploded. But the Green Revolution became a victim of its own success. Food prices plunged by some 60% by the late 1980s from their peak in the mid-1970s. Policy makers and aid workers turned their attention to the poor’s other pressing needs such as health care and education. Farming got starved of resources and investment. By 2004 aid directed at agriculture sank to 3.5 % and Agriculture lost its glitter. Also as consumer in high-growth giants such as China and India became wealthier they began eating more meat so grain once used for human consumption got diverted to beef up livestock. By early 2008 panicked buying by importing countries and restrictions slapped on grain exports by some big producers helped drive prices upto heights not seen for three decades. Making matters worse land and resources got reallocated to produce cash crops such as biofuels and the result was that voluminous reserves of grain evaporated. Protests broke out across the emerging world and fierce food riots toppled governments. This spurred global leaders into action. This made them aware that food security is one of the fundamental issues in the world that has to be dealt with in order to maintain administrative and political stability. This also spurred the US which traditionally provisioned food aid from American grain surpluses to help needy nations to move towards investing in farm sectors around the globe to boost productive for themselves and be in a better position to feed their own people.
 Africa, which missed out on the first Green Revolution due to poor policy and limited resources, also witnessed a 'change'. Swayed by the success of East Asia the primary poverty-fighting method favoured by many policy-makers in Africa was to get farmers off their farms and into modern jobs in factories and urban centers. But that strategy proved to be highly insufficient. Income levels in the countryside badly trailed those in cities while the FAO estimated that the number of poor going hungry in 2009 reached an all time high at more than one billion. In India on the other hand with only 40% of its farmland irrigated, entire economic boom currently underway is held hostage by the unpredictable monsoon. With much of India’s farming areas suffering from drought this year, the government will have a tough time meeting its economic growth targets. In a report Goldman Sachs, predicted that if this year, too receives weak rains it could cause agriculture to contract by 2 % this fiscal year making the government 7%GDP growth target look "a bit rich". Another green revolution is the need of the hour and to make it a reality, the global community still has much backbreaking farm work to do.

What motivated the US to focus on investing in agriculture across the globe?

Among Nature’s most intriguing phenomena are the partnerships formed by any different species. The name used for these relationships, Symbiosis, comes from Greek meaning "living together". Not all symbiotic relationships are the same. There are some called commensal relationships, in which one partner gains a benefit while the other gains little or none but is not harmed. One example is the relationship between two types of fish remoras and sharks. The remora, which is long and often striped, attaches itself to a shark (sometimes to another type of fish or a whale), using a sucker on its head. When the shark makes a kill, the hitchhiker briefly detaches itself to feed on the scraps. Another type of symbiotic relationship is parasitism, in which one partner benefits at the expense of others. Ticks and tapeworms are among familiar parasites. 

The third type of symbiotic relationship, called mutualism, is a true partnership in which both partners benefit. The relationship may be limited as when zebras and wild best graze together on the vast African grasslands. Each species can survive on its own, but together their chances of detecting predators are improved because each contributes a specially keen sense. (Zebras have the better eyesight;  wild beast, hearing and sense of smell). In a few cases partners are so interdependent that one cannot survive without the other. Most mutualistic relationships probably lie some where in between

Parasites

Read the given passage and answer the questions that follow.

Pollution befouls the air and poisons water. Pollution induces the release of toxicants into the biosphere which makes the air unsuitable for breathing, harms the quality of water and soil, and causes the emission of substances that may cause damage to humans, plants and animals.
To cater to the needs of an increasing population, agriculture has been intensified through the use of a wide spectrum of fertilizers and pesticides. Diverse industries have been set up to produce chemicals including those that pose a danger to all life forms.

Rapid industrialisation has led to deterioration in the quality of air. Widespread use of coal and fossil fuels in industries and petroleum fuel in motor vehicles has aggravated the air pollution problem. Our atmosphere seems to have become a waste basket into which dust, noxious fumes, toxic gases and other pollutants are callously thrown.

The intensity of air pollution in Indian cities is increasing primarily due to our vintage vehicles and their poor performance. Water pollution, too has increased with the growth of our population and also that of our industries. Water pollution has acquired dangerous dimensions ever since sewage and industrial effluents have started being disposed of into the rivers.

Once considered sacred, the rivers are now turning murky and stink. It is sad that almost three-fourths of our fellow citizens have no choice but to drink filthy water. The severely polluted rivers due to mindless dumping of sewage and industrial wastes are a cause for concern not only to us humans but also to myriads of life forms that exist in water.

On the French and Italian rivier as we can no longer see the sparkling blue waters. The Mediterranean Sea is reported to be turning grey. Rivers and canals pour sewage, detergents and industrial waste into the sea; tankers flush their contents near the river or sea; bottles, rotting garbage and oil slicks are washed into the beaches. The phosphates and nitrates applied to farmlands as inorganic fertilizers, concentrate in lakes and estuaries causing algal blooms due to which wide expanses of water get choked, plants rot, oxygen is used up and fish die.

Deterioration in the quality of air can mainly be attributed to

Directions: Read the following passage and answer the questions as directed.

We expect individuals (I) to take charge of their lives, to assume responsibility for their decisions. But when individuals group together, a problem arises. Groups can’t take charge of themselves, nor can every member simultaneously take charge of the entire group. Someone from the group is invariably asked to show the way, to become the primary agent, to lead. Yet, not everyone who occupies high office is a leader. A person who merely (II) or has management skills is not a leader. Moreover, not everyone who assumes the role of a leader is able to play it well. What qualities then make for a leader? Which (A)virtues are required to provide ethical leadership? I suppose there is little new (III). But let me still give it a shot in the hope that it serves as a good reminder. And in the election year, why not focus on qualities necessary for political leadership?

If a person is chosen to lead the group, it is her responsibility to take care of the interest of each person of the entire group. This often (B)____ putting collective interest before her own interest or that of her

preferred group. For this to happen, she must first be able to identify the common good, to have a grasp of what is acceptable to all, to have an inclusive vision. This requires an infinite capacity to listen to others, to learn from them, to have the intellectual ability to critically examine and evaluate what everyone wants and needs, and then put them all together. Since this intellectual formulation can only be the first step, an estimate of the real quality of a decision is not known until it is implemented; ______(C) _______.
 This requires him to keep his ear to the ground, listen patiently to criticism to judge if his policies are working. He must not be defensive when criticised, or evade uncomfortable questions, but face criticism head on and be able to sift the wheat from the chaff. It also necessitates that a leader show flexibility and an ability for course correction by admitting mistakes. He should know that one’s stature is not diminished by accepting fallibility. A leader must be a good communicator, and that is greatly helped if he has a way with words. But all the rhetorical flourish is of no avail if the speech lacks sincerity and conviction. Finally, a good leader knows that nothing can be achieved without the collective expertise and wisdom of a support team.
 It is equally tempting to pick those one has taken a fancy to, who are personally loyal. But such people often lack spine. (D)Fearful people with poor ability can never offer good advice to their leader and could allow bad decisions to prevail that push the country down a ruinous path. Besides, they are often among the first to backstab the leader once out of power. Thus, personal likes and dislikes too must be set aside.

Two sentences are given in italics on both sides of C. Which of the following statements can come in between the two sentences in place of C so as to maintain the continuity of the paragraph?

Read the following passage carefully and choose the best answer to each question out of the five given alternatives.

Almost everybody allows himself or herself or herself some entirely unjustifiable generalizations on the subject of women. Married men, when they generalize on that subject, judge by their wives; women judge by themselves. It would be amusing to write a history of the views of men on women.

In antiquity, when male supremacy was unquestioned and Christian ethics were still unknown, women were harmless, rather silly, and a man who took them seriously was somewhat despised.

Plato’s great objection to the drama was that the playwright had to imitate women in creating his female roles. With the coming of Christianity, the woman took on a new part, that of the temptress; but at the same time, she was also found capable of being a saint.

In those days, a man who took women seriously was

Read the following passage carefully and answer the questions given below it.
If the census tells us that India has two or three hundred languages, it also tells us, I believe, that Germany has about fifty or sixty languages. I do not remember anyone pointing out this fact in proof of the disunity or disparity of Germany. As a matter of fact, a census mentions all manner of petty languages, sometimes spoken by a few thousand persons only; and often dialects are classed for scientific purposes as different languages. India seems to me to have surprisingly few languages, considering its area. Compared to the same area in Europe, it is far more closely allied in regard to language, but because of widespread illiteracy, common standards have not developed and dialects have formed. The principal languages of India are Hindustani (of the two varieties, Hindi and Urdu), Bengali, Gujarati, Marathi, Tamil, Telugu, Malayalam and Kannada. If Assamese, Oriya, Sindhi, Kashmiri, Pushtu and Punjabi are added, the whole country is covered except for some hill and forest tribes. Of these, the Indo-Aryan languages, which cover the whole north, centre and west of India, are closely allied; and the southern Dravidian languages, though different, have been greatly influenced by Sanskrit, and are full of Sanskrit words. 

ln the question given below choose the word most opposite in meaning to the given word and mark your answer.
Stridency 

Direction : Read the following passage carefully and answer the question given below it. Certain words/phrases have been printed in bold to help you locate them while answering some of the question.
 Governments have traditionally equated economic progress with steel mills and cement factories. While urban centers thrive and city dwellers get rich, hundreds of millions of farmers remain mired in poverty. However fears of food shortages, a rethinking of anti-poverty priorities and the crushing recession in 2008 are causing a dramatic shift in world economic policy in favour of greater support for agriculture.
 The last time when the world’s farmer felt such love was in the 1970s. At that time, as food prices spiked, there was real concern that the world was facing a crisis in which the planet was simply unable to produce enough grain and meat for an expanding population. Government across the developing world and international aid organisations plowed investment into agriculture in the early 1970s, while technological breakthroughs, like high-yield strains of important food crops, boosted production. The result was the Green Revolution and food production exploded. But the Green Revolution became a victim of its own success. Food prices plunged by some 60% by the late 1980s from their peak in the mid-1970s. Policy makers and aid workers turned their attention to the poor’s other pressing needs such as health care and education. Farming got starved of resources and investment. By 2004 aid directed at agriculture sank to 3.5 % and Agriculture lost its glitter. Also as consumer in high-growth giants such as China and India became wealthier they began eating more meat so grain once used for human consumption got diverted to beef up livestock. By early 2008 panicked buying by importing countries and restrictions slapped on grain exports by some big producers helped drive prices upto heights not seen for three decades. Making matters worse land and resources got reallocated to produce cash crops such as biofuels and the result was that voluminous reserves of grain evaporated. Protests broke out across the emerging world and fierce food riots toppled governments. This spurred global leaders into action. This made them aware that food security is one of the fundamental issues in the world that has to be dealt with in order to maintain administrative and political stability. This also spurred the US which traditionally provisioned food aid from American grain surpluses to help needy nations to move towards investing in farm sectors around the globe to boost productive for themselves and be in a better position to feed their own people.
 Africa, which missed out on the first Green Revolution due to poor policy and limited resources, also witnessed a 'change'. Swayed by the success of East Asia the primary poverty-fighting method favoured by many policy-makers in Africa was to get farmers off their farms and into modern jobs in factories and urban centers. But that strategy proved to be highly insufficient. Income levels in the countryside badly trailed those in cities while the FAO estimated that the number of poor going hungry in 2009 reached an all time high at more than one billion. In India on the other hand with only 40% of its farmland irrigated, entire economic boom currently underway is held hostage by the unpredictable monsoon. With much of India’s farming areas suffering from drought this year, the government will have a tough time meeting its economic growth targets. In a report Goldman Sachs, predicted that if this year, too receives weak rains it could cause agriculture to contract by 2 % this fiscal year making the government 7%GDP growth target look "a bit rich". Another green revolution is the need of the hour and to make it a reality, the global community still has much backbreaking farm work to do.

What is the author’s main objective in writing the passage?