SSC Renewable Energy CQ Question Answer Solution PDF

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In a speech at the 90th Science Congress, internationally acknowledged scientist and former Indian president Mr APJ Abdul Kalam mentioned a very important aspect of this mankind's future energy crisis. He pointed out that the era of wood and bio-mass has almost come to an end. The age of oil and natural gas would soon be over within the next few decades. Massive burning of world's coal reserves may lead to a worldwide ecological disaster because coal burning emits the highest amount of carbon in the atmosphere. So according to Kalam, the only solution that mankind can look to is the massive use of solar energy in future because it has some advantages over other forms of renewable energies.

Now, why has Kalam put so much importance to the issue of energy? The energy sources have always been a major factor of change throughout history. The world's petroleum consumption has increased from 3 billion barrels annually in 1930 to 37 billion barrels annually today. In the next quarter century, the world's population is expected to be about 8 billion which is 30 percent higher than today. Developing countries will grow their economies about two times faster than industrialised countries. Global economic growth is expected to continue at 3 percent per year. Consequently, the global demand for energy will grow at about 1.7 percent per year on an average. It indicates a 50 percent rise of energy consumption by 2030. If the world's daily petroleum consumption is 100 million barrels now, it will rise to 150 million barrels by that time. The present reserve of hydro-carbon energy resources is limited and it will not be sufficient to meet the future energy challenges of the world. Hence, leading industrial countries have taken initiatives to use alternative energy sources mainly known as green or renewable energy sources. The bottom line of Kalam's speech indicates the concern of mankind in the 21st century.

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Winston Churchill was Britain's prime minister for most of World War II. He was famous for his speeches, and for his rofusal to give in, even when things were going badly. For a time he was the most famous person in Britain. People all over the world know the name Winston Churchill. Churchill was born in 1874. He lived through two world wars. He saw the first cars, the first planes, and the first astronauts in space. He was at the crowning ceremony of Elizabeth II as Queen in 1953. He was an MP for over 60 years. People remember Churchill as a war leader. But he did other important jobs in a long life full of adventures. Winston Churchill loved history and in his life he made history. In 1953, Elizabeth II was crowned Queen. Churchill became Sir Winston Churchill. He was given the Nobel Prize for Literature, for his history books. In 1955, be gave up being prime minister. But he was an MP until 1964. Though old and often not well, he still enjoyed painting pictures. Churchill died on 24 January 1965. Many world leaders came to his state funeral,

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Countries of the world rely heavily on petroleum, coal and natural gas for their energy sources. There are two major types of energy sources: renewable and non-renewable. Hydro-carbon or fossil fuels are non-renewable sources of energy. Reliance on them poses real big problems. First, fossil fuels such as oil, coal, gas, etc. are finite energy resources and the world eventually will run out of them. Secondly, they will become too expensive in the coming decades and too damaging for the environment. Thirdly, fossil fuels have direct polluting impacts on earth's environment causing global warming. In contrast, renewable energy sources such as, wind and solar energy are constantly and naturally replenished and never run out.

Most renewable energy comes either directly or indirectly from the sun. Sunlight or solar energy can be used for heating and lighting homes, for generating electricity and for other commercial and industrial uses.

The sun's heat drives the wind and this wind energy can be captured with wind turbines to produce electricity. Then the wind and the sun's heat cause water to evaporate. When the water vapour turns into rain or snow and flows downhill into rivers or streams, its energy can be captured as hydroelectric energy.

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Floronco Nightingale was Italian. She was born in Florence. So, she was named after the name of the city she was born in. It was May 12, 1820 that this great humanitarian was born to a landlord. She studied nursing in Germany. After the completion of nursing she took a job in a London hospital. She went to Turkey with a group of 38 nurses to work for the sick British soldiers during the Crimean War in 1853. She worked day and night to help the wounded soldiers. After three yoars she came to England as the 'Lady with the Lamp'. Then she set up Nightingale School for nurses in London. She departod from the world in 13 August 1910. The world is greatly indebted to this great humanitarian for her dedication and devotion to humanity. She is an ever glowing star to next generations to come. Florence Nightingale sacrificed her whole life for the welfare of the humanity. So, we should follow the footprints of this great heart to serve the mankind.