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English for Today
Unit One: Father of the Nation Bangabandhu's Family in 1971 The Tale of Homecoming Bangabandhu at the UN Bangabandhu's Relationship with other countries Unit Two: Pastimes Have You Any Favourite Pastime? Reading Really Helps Change in Pastime Change in Pastimes in Bangladesh Pastimes Vary Unit Three: Events and Festivals Mother's Day May Day International Mother Language Day - 1 International Mother Language Day - 2 Independence Day Pahela Baishakh Unit Four: Are We Aware? The Ferry Boat Are We Too Many? Our Food and Shelter The Story of Lipi Let's become skilled workforce Unit Five: Nature and Environment The Greed of the Mighty Rivers Environmental Pollution Man and Climate Putting Our Fish In Hot Water A Friend of The Earth Unit Six: Our Neighbors Nepal, The Land of Everest Sri Lanka: The Pearl of the Indian Ocean The Maldives India: Unity In Diversity Bhutan: The Land of Happiness Unit Seven: People Who Stand Out Zainul Abedin, The Great Artist The Art Of Silence The Beginning Love For Humanity Love For Humanity The wizard of Apple Job's Childhood Unit Eight: World Heritage The Shat Gambuj Mosque The Somapura Mahavihara The Statue of Liberty Lake Baikal Unit Nine: Unconventional Jobs Jobs That People Do Weired jobs Around Floral Career Unit Ten: Dreams Have a Dream What I Dream to be They Had Dreams (Part- 1) They Had Dreams (Part- 2) Unit Eleven: Renewable Energy Renewable Energy Sources (Part 1) Renewable Energy Sources (Part 2) Unit Twelve: Roots My Roots My Roots 2 The Return Of the Native In Search Of Identity Unit Thirteen: Media and Modes of E-communication Media and Modes Of E-Communication Social Network Sevices E- Learning Unit Fourteen: Pleasure and Purpose Books Two Mothers Remembered The Sands Of Dee Time, You Old Gipsy Man Stopping by Woods on a Snowy Evening The Purple Jar (Part -1) The Purple Jar (Part -2) The Purple Jar (Part -3) A Pond of Flesh The Three Caskets The Trial

Renewable Energy Sources (Part 1)

নবম-দশম শ্রেণি (দাখিল) - English for Today - Unit Eleven: Renewable Energy | | NCTB BOOK
4

B. Read the text and answer the following questions.
 

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 

gfindustrial 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.

 

Questions
1. What is the scientist Kalam concerned about?

2. Why do you think the massive burning of coal may lead to an ecological
disaster?

3. What do you mean by the potential danger of nuclear energy?

4. What according to Mr Kalam is the solution of future energy crisis?

5. Why does Mr Kalam put so much importance on the issue of energy?

6. Why does Mr Kalam put much importance on solar energy?

 

C. Make sentences using the substitution table.

The energy industries

The global petroleum consumption

Major industrial economies

Scientists

have

has

taken

been 

emphasised 

increased


the use of renewable energy sources.

a major factor for change throughout history. 

to three billion barrels per year.

initiatives to tap alternative energy sources.
 

Content added || updated By
Md Arafat ali

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