Alternative Energy Sources Reading Answers

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16-09-2025

Alternative Energy Sources Reading Answers

The Alternative Energy Sources reading answers are given below. Find the answers of the respective passage to solve your error. 

Solution For Alternative Energy Sources

1. B 5. Not given 9. Amount of toxins 13. (high) cost
2. D 6. True 10. Renewable energy  
3. C 7. True 11. Organic matter  
4. D 8. False 12. Geothermal energy  

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Even after solving the Alternative Energy Sources Reading passage, are you not satisfied with your solving skills? Do not worry, keep practising using the passage and once again verify your answers with the alternative energy sources reading answers, to enhance your reading as well as answering skills. 

The Alternative Energy Sources reading answers given above are taken from the Cambridge practice test section. To improve your reading and IELTS skills practice this passage. The IELTS reading is one of the difficult modules in the IELTS exams.

The Alternative Energy Sources provides information about the types of Alternative Energy Resources, usage of Alternative Energy Sources as well as the alternatives of the Non-renewable Energy sources. Three distinct IELTS reading question types along with the passage are given below for practice. After attempting all the questions kindly verify your answers with the Alternative Energy Resources reading answers. 

  • IELTS Reading Multiple Choice Questions 
  • IELTS Reading True/False/Not given
  • IELTS Reading Sentence Completion

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7 thoughts on the passage “Alternative Energy Sources”

Note some significant points on the passage before identifying the Alternative Energy Sources reading answers.

  • This reading passage is one of the repeatedly used reading practice tests. Thus we have given alternative energy sources with explanations to assist you in your preparation. 
  • Check your Alternative Energy Sources Reading Answers for the passage taken from Cambridge Academic Reading Test 20, Reading Passage 1.
  • To locate answers easily you must note numbers, years, names and locations mentioned in the passage.
  • IELTS experts believe that this piece can be used to test a variety of skills, including reading comprehension and vocabulary.
  • Answer all the questions based on the reading passage to develop your reading abilities. Here we have given the alternative energy sources reading answers with explanation. 
  • Make a quick scan of the passage and identify the sections that require greater attention. While verifying your answers, you can use our alternative energy sources reading answers with location to spot the correct answers.  
  • You can use Alternative Energy Sources reading pdf that is included in this article as practice material in the future. 
  • Considering all of the above points you need to pay full attention while identifying the Alternative Energy Sources reading answers.

Before attempting the Alternative Energy Sources IELTS reading answers kindly refer to the IELTS reading tips.

IELTS reading passage - Alternative Energy Sources

Go through the following passage and attempt all the given questions (1-13). After attempting verify your answers with the given Alternative Energy Sources reading answers with explanation.

Alternative Energy Sources

  1. Alternative energy sources are being pursued for a variety of reasons. Many countries have signed the Kyoto Protocol, making measures to reduce pollutants and greenhouse gases a top priority in today's culture. Alternative, or renewable, energy sources hold a lot of promise for reducing the quantity of pollutants produced as a result of energy use. Alternative energy not only protects against unwanted by-products, but it also helps to maintain many of the natural resources that we now utilise as energy sources. It's crucial to know what sorts of alternative energy are available in order to comprehend how they can assist protect the planet's delicate ecological balance and conserve non-renewable energy sources like fossil fuels.
  2. Alternative energy sources are constantly replaced, non-polluting resources. They are not caused by fossil fuel combustion or atom splitting. Utilisation of renewable energy helps supplement our energy supply. Alternative energy sources include biomass energy, geothermal energy, water-generated power, solar power, wind power, fuel cells, ocean thermal energy conversion, tidal energy, and wave energy.
  3. Biomass is a type of renewable energy derived from organic matter. Wood, forest and mill leftovers, animal waste, cereals, agricultural crops, and aquatic plants are all examples of biomass fuels. These materials are used as fuel to heat water for steam generation or are processed into liquids and gases that can be burned to achieve the same result. By 2020, the United States could generate up to four-and-a-half times more biopower thanks to increased biomass use, cheaper production costs, and improved technology. It is predicted that biomass would grow at the fastest rate among renewable energy sources, increasing by 80 percent to 65.7 billion KW by 2020.
  4. Geothermal energy extracts heat from the earth's interior. To deliver the hot water or steam to the surface, wells are bored into geothermal reservoirs. In geothermal facilities, the steam drives a turbine-generator, which generates energy. This heat is used to heat homes and greenhouses in some regions, as well as to supply processed heat for businesses and industries. Iceland's capital, Reykjavik, is heated by geothermal energy. The majority of geothermal resources are found in the western United States. Geothermal heat pumps heat and cool homes by tapping into shallow earth energy, and they may be used practically anyplace. Much more power could be generated from hydrothermal resources with technical advancements. Scientists have been experimenting with geothermal power plants by pumping water into the hot, dry rock 3-6 miles beneath the earth's surface.
  5. Water-generated energy is produced by driving turbine-generators with the force of falling water. This form of energy generates more electricity than any other renewable energy source. Estimates indicate that water-generated power in the United States will decrease from 389 billion KW in 1999 to 298 billion KW in 2020. The majority of the best water-generated energy sites have already been developed, and there are concerns about the environmental impact of large-scale water-generated installations, therefore this decline is anticipated.
  6. Solar power is produced without the use of a turbine or an electromagnet. Photovoltaic cells on special panels catch sunlight and convert it directly into electricity. A battery is used to store the electricity. Solar energy can also be utilised to heat domestic water directly (solar thermal technology). The domestic photovoltaic (PV) industry might supply up to 15% of the new peak electricity capacity required in the United States by 2020.
  7. Electricity can be generated using wind energy. The blades of a windmill spin when wind blows past them. The shaft connected to the blades rotates, powering a pump or turning a generator to generate electricity. After that, electricity is stored in batteries. The amount of energy that can be produced is determined by the wind speed and the size of the blades. In windier areas of the country, wind energy is more efficient. The majority of wind energy is generated by wind farms, which are enormous clusters of turbines positioned in reliably windy areas. Wind as a source of energy is both free and non-polluting, with no emissions or chemical waste. Wind-generated electricity is becoming more prevalent.
  8. Fuel cells are electrochemical devices that use a chemical reaction to generate power. Fuel cells are rechargeable, have no moving parts, are quiet, and have no moving parts. Scientists are investigating how they could be utilised as a power source for almost-emission-free autos and as electricity-generating plants. The exorbitant cost of producing fuel cells has kept this important energy source from becoming widely used.
  9. Ocean sources; Oceans, which span more than 70% of the earth's surface, contain both thermal and mechanical energy from the sun's heat and tides and waves. Solar radiation is converted to electricity by ocean thermal energy conversion (OTEC). To create electricity, OTEC power plants employ the temperature difference between warm surface waters heated by the sun and colder waters found at ocean depths. The energy of the tides can also be used to generate electricity. The power of changing tides is harnessed via tidal energy, but considerable tidal variances are required. The tidal process makes use of the tides' natural motion to fill reservoirs, which are then progressively emptied through electricity-generating turbines. Wave energy conversion takes energy from surface waves, pressure variations beneath the water's surface, or the entire wave. The interaction of winds with the ocean surface is also used in wave energy. In the United States, this technology is still in the early stages of development.

Alternative Energy Sources reading questions

Questions (1 - 2)

Choose the correct letter A, B, C or D.

1.  Geothermal Energy is produced by

  1. Warming the air beneath the ground surface
  2. Utilising the kinetic energy of falling water
  3. The extraction of water steam from the earth’s subsurface.
  4. Utilising the earth’s inherent energy.

2. The most significant barrier of creating one of these energy sources is

  1. Expense
  2. Amount of energy dissipated
  3. Electricity
  4. Fuel cell energy

Click to know more about IELTS reading multiple choice questions

Questions (3 - 7)

Do the following statements agree with the information given in the Reading Passage?
Write

TRUE if the statement agrees with the information
FALSE if the statement contradicts the information
NOT GIVEN if there is no information on this

3. Alternative Energy sources have multiple applications.

4. At Least one of these alternative energy sources needs fossil fuels.

5. The disbursement is the minor factor that is an obstacle to developing one of these forms of energy.

6. Alternative energy with the highest efficiency is Wind Power.

7. There are numerous sources to generate Wave Energy.

Click to know more about IELTS reading true/false/not given

Questions (8 - 13)

Complete the sentences.

Write NO MORE THAN THREE WORDS AND/ OR A NUMBER from the passage for each answer.

8. By utilising Alternative energy sources, we can reduce the __________ 
generated by conventional energy sources.

9. We currently use __________ as part of our power source, in addition to fossil fuels and atom-splitting.

10. Biomass is a type of renewable energy that comes from __________.

11. The renewable energy that originates from the earth's interior is known as __________.

12. The __________ of manufacturing is one of the reasons why fuel cells aren't extensively used.

13.  __________ alternative energy source does not utilise turbines.

Click to know more about IELTS reading sentence completion

Alternative Energy Sources reading answers

1. C 5. False 9. Renewable energy 13. Fuel Cell Energy
2. A 6. Not Given 10. Organic matter  
3. True 7. True 11. Geothermal energy  
4. False 8. Quantity of pollutants 12. (exorbitant) cost  

Alternative Energy Sources reading answers with explanations

Alternative Energy Sources reading answers with explanation will help you in identifying the required information from the passage. You can use these answers to evaluate your preparation level. 

(Note: The text in italics is from the reading passage and shows the location from where the answer is taken or inferred. The text in the regular font explains the answer in detail.)

1. C 

Explanation: The 1st line of paragraph D states,” Geothermal energy extracts heat from the earth's interior. To deliver the hot water or steam to the surface, wells are bored into geothermal reservoirs”.

2.  A

Explanation: The 5th line of paragraph H states, “The exorbitant cost of producing fuel cells has kept this important energy source from becoming widely used”.

3. True

Explanation: The 2nd line of paragraph A states,” making measures to reduce pollutants and greenhouse gases a top priority in today's culture. Alternative, or renewable, energy sources hold a lot of promise for reducing the quantity of pollutants produced as a result of energy use. Alternative energy not only protects against unwanted by-products, but it also helps to maintain many of the natural resources that we now utilise as energy sources”.

4. False

Explanation: The 1st line of paragraph C states,” Biomass is a type of renewable energy derived from organic matter. Wood, forest and mill leftovers, animal waste, cereals, agricultural crops, and aquatic plants are all examples of biomass fuels. These materials are used as fuel to heat water for steam generation or are processed into liquids and gases that can be burned to achieve the same result”.

5. False

Explanation: The 5th line of paragraph H states, “The exorbitant cost of producing fuel cells has kept this important energy source from becoming widely used”.

6. Not Given

Explanation:  The 8th line of paragraph G states,” Wind as a source of energy is both free and non-polluting, with no emissions or chemical waste. Wind-generated electricity is becoming more prevalent”.

7. True

Explanation: The 10th line of paragraph I states,” Wave energy conversion takes energy from surface waves, pressure variations beneath the water's surface, or the entire wave. The interaction of winds with the ocean surface is also used in wave energy. In the United States, this technology is still in the early stages of development”.

8. Quantity of pollutants

Explanation: The 3rd line of paragraph A states,” Alternative, or renewable, energy sources hold a lot of promise for reducing the quantity of pollutants produced as a result of energy use.

9.  Renewable Energy

Explanation: The 1st line of paragraph B states,” Utilisation of renewable energy helps supplement our energy supply. Alternative energy sources include biomass energy, geothermal energy, water-generated power, solar power, wind power, fuel cells, ocean thermal energy conversion, tidal energy, and wave energy.

10. Organic Matter 

Explanation: The 1st line of paragraph C states,” Biomass is a type of renewable energy derived from organic matter. Wood, forest and mill leftovers, animal waste, cereals, agricultural crops, and aquatic plants are all examples of biomass fuels.

11. Geothermal Energy

Explanation: The 1st line of paragraph D states,” Geothermal energy extracts heat from the earth's interior. To deliver the hot water or steam to the surface, wells are bored into geothermal reservoirs. In geothermal facilities, the steam drives a turbine-generator, which generates energy.

12. (Exorbitant) Cost

Explanation: The 5th line of paragraph H states,” The exorbitant cost of producing fuel cells has kept this important energy source from becoming widely used”.

13. Fuel Cell Energy

Explanation: The 1st line of paragraph H states,” Fuel cells are electrochemical devices that use a chemical reaction to generate power. Fuel cells are rechargeable, have no moving parts, are quiet, and have no moving parts”.

Check the other reading passages

Click to check the other important reading passages listed below,

Conclusion

To strengthen your reading and language skills, save this “Alternative Energy Sources reading answers'' article for your reference. This will help you to achieve a better score in your IELTS reading. 

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About Author Roshan Sunthar

Roshan Sunthar is a study abroad expert as well as a renowned writer and author in international education. His academic excellence and 5+ years of work experience give him in-depth knowledge of international standardised exams and test preparation in IELTS, TOEFL, GRE, PTE, SAT, etc. The study materials he prepares incorporate exam-like questions. He’s also an expert in writing Statement of Purposes (SOPs) and Letter of Recommendations (LORs) for college admissions. He usually spends his leisure time watching English classics and documentaries, travelling, etc.

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