Read the text below and answer the questions that follow:

But I feel peaceful. Your success in the ring this morning was to a small degree, my success. Your future is assured. You will live, secure and safe, wilber. Nothing can harm you now. These autumn days will shorten and grow cold. The leaves will shake, lose from the trees and fall. Christmas will come, and the snows of winter. You will live to enjoy the beauty of the frozen world, for you mean a great deal to Zuckerman and he will not harm you, ever. Winter will pass, the days will lengthen, the ice will melt in the pasture pond. The song sparrow will return and sing, the frogs will awake, the warm wind will blow again. All these sights and sounds and smells will be yours to enjoy, Wilber this lovely world, these precious days-----

Answer the following questions:

Providing enough energy, to meet an ever-increasing demand is one the greatest problems the world is now facing, Energy is the key to an industrialized economy, which calls for a doubling of electrical output every ten to twelve years. Meanwhile, the days of cheap; abundant and environmentally acceptable power may be coming to an end. Coal is plentiful but polluting, natural gas is scarce; oil is not found everywhere. Nuclear power now appears costly and risky. In many countries in the world, keen interest is being shown in new energy sources. Among the familiar but largely undeveloped sources, sloar energy, geothermal energy, and energy from the ocean deserver special consideration. Scientists are working to find ways to tap the energy from the sun and the oceans. If they are successful, it will mean that we will have an abundant and uninterrupteu supply of cheap energy. This energy will be clean and will not contribute environmental pollution. Every country will be in a position to produce own requirement of energy. Poor countries will not have to depend on countries for their supply of energy. For them, it will mean a rap economic development. (write a precis)

The The man who has something to say and who is known never to has, is sure to be listened to, especially in a deliberative assembly there is business to be done, while no one pays attention to the words. Try to have an idea, if you cannot find one-ideas are not by a common-have two or three relevant fates. You may tell me that man is forced to speak then there is nothing to be said. This does happen, because of you think a little before you rise, you will almo find something relevant to the matter in hand, even it the occasion is ornamental one. There is a well-known speech of Cicero's in which to present a legel case of behalf, of a poet. He evidently knew that the le was hawk, so he passed quickly and lightly over it, but made a graceful eloquent speech was not every new then, is still less new now, but the was so polished in its language that it can still be read with pleasure. So you have to propose the health of some one of whose personal merits you nothing, you may say something about the importance of his office if he high civil servant or a mayor, of the services rendered by his profession if heira surgeon. If you can find nothing at all to say, don't say it. Your silence will not harm you in the long run. (write a precis)

Some old people are oppressed by the fear of death. In the young there is a justification for this feeling. Young men who have reason to fear that they ill be killed in battle may justifiably feel bitter in the though that they have been cheated of the best things that live has to offer. But in an old man who has known, joys and sorrow, and has achieved whatever work it was in him to do the fear of death is somewhat object an ignorable. The best way to overcome it so at least it seems to me is to make your interests gradually wider and more impersonal, until bit by bit the walls of the ego recede and your life becomes increasingly merged in the universal life. An individual human existence should be like a river small at first, narrowly contained within its banks, and rushing passionately past boulders and over waterfalls, Gradually the river grows wider, the banks recede, the waters flow more qulitly, and in the end, without any visible break they become merged in the sea, and painlessly lose their individual being. The man who, in old age, can see his live in this way, will not suffer from the fear of death, since the things he cares for will continue. (Write a precis)

The essence of wisdom is emancipation as far as possible, from the tyranny; of the here and the now. We cannot help the egoism of our senses, sight and sound and touch are bound up with our on bodies and cannot be made impersonal. Our emotions start similarly from ourselves. An infant feels hunger or discomfort and is unaffected except by his own physical condition Gradually, with the years, his horizon widens, and in proportion as his thougts and feelings become less personal and less concerned with his won physcial states, he achieves growing wisdom. This is of course, a matter of degree. No one can view the world with complete impartiality, and if anyone could, he would hardly be able to remain alive. But it is possible to make a continual approach towards impartiality, on one hand, by knowing things somewhat remote in time or space, and on the other hand, by giving to such things their que weight in our feelings. It is this approach towards impartiality that constitutes growth in wisdom. (write a precis)

Summarize the passage in your own words (within 100 words).

What is the main reason of climate change?