Biofuels IELTS Reading Answers
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The Academic passage ‘Biofuels‘ is a reading passage that appeared in an IELTS Test. So, the passage given will help you enhance your reading and understanding capabilities.
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Biofuels
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| Question number | Answer | Keywords | Location of keywords |
|---|---|---|---|
| 1 | D | Not only do Brazilians drive far less than Europeans and Americans, their fertile land, and favorable climate mean their crop yield is higher | Paragraph D;
Last line |
| 2 | F | He predicts that a boom in bioethanol would lead to a competition between 800 million people in the world who own automobiles and three billion people who live on less than $2 a day, many of whom are already spending over half their income on food. | Paragraph F;
Last line |
| 3 | B | Supporters claim they will cut our net greenhouse gas inputs dramatically because the crops soak up carbon dioxide from the atmosphere as they grow. | Paragraph B;
Line 1 |
| 4 | A | Biofuel is an umbrella term used to describe all fuels derived from organic matter. | Paragraph A;
Line 3 |
| 5 | E | a study by David Pimentel at Cornell University in New York concluded that corn ethanol creates more greenhouse gases than burning fossil fuel. | Paragraph E;
Lat line |
| 6 | C | The controversy may be brand new, but the biofuels themselves are an old idea. The Model T Ford, first produced in 1908, was designed to run on ethanol, and Rudolf Diesel who invented the diesel engine in 1892, ran his demonstration model on peanut oil. | Paragraph C;
Lines 1 – 2 |
| 7 | molecules | Its molecules comprise chains of sugars | Paragraph G;
Line 6 |
| 8 | Cell walls/structural component | Its molecules comprise chains of sugars strong enough to make plant cell walls. | Paragraph G;
Line 6 |
| 9 | ferment | If you could break down these molecules to release the sugars they contain, you could ferment them until ethanol is created | Paragraph G;
Line 7 |
| 10 | switchgrass | Developing such a process could open the door to many non-food materials such as switchgrass – a wild grass that lives on the eastern states and Midwest of the US – straw, crop residues like stalks and hardwood chips. | Paragraph G;
Line 8 |
| 11 | corn | Its supporters say these cellulose materials could deliver twice as much ethanol per hectare as corn, | Paragraph G;
Line 9 |
| 12 | environmentally | do it using land that is today neither economically productive nor environmentally precious. | Paragraph G;
Line 9 |
| 13 | C | If the numbers add up this could be the development that may yet deliver us from our dependence on oil without costing us the Earth in the process. | Paragraph G;
Last line |
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