Research from the IVL Swedish Environmental Institute indicates that producing a single lithium-ion battery for a BEV generates between 150 and 200 kilograms of CO2 per kilowatt-hour of battery capacity. Consequently, a BEV with a 75 kWh battery may start its life with a carbon debt of over 10 tonnes—equivalent to driving a conventional petrol car for roughly two years. Only after a certain mileage threshold, often termed the break-even point , does the BEV’s lower operational emissions compensate for its manufacturing footprint. For most drivers, this break-even occurs between 15,000 and 30,000 miles.

Before diving into the passage, it's essential to understand the key technologies and terms you will encounter. The core technologies you need to be familiar with include:

These questions test your ability to identify the writer’s precise opinions or factual accuracy.

Mastering the "Environmentally Friendly Vehicles" IELTS Reading Passage: Answer Keys, Strategies, and Full Analysis

Despite their rising popularity, BEVs face severe criticism regarding their true environmental credentials. Skeptics point out that an electric vehicle is only as clean as the electricity grid used to charge it. If a BEV is powered by electricity generated from a coal-fired power plant, its localized emissions are effectively just shifted upstream to the utility plant. Additionally, the extraction of raw materials for batteries—such as cobalt, lithium, and nickel—frequently involves severe ecological degradation and unethical labor practices in developing nations. The manufacturing process of a BEV battery pack is currently so resource-intensive that a brand-new electric car carries a higher carbon footprint out of the factory gate than a comparable petrol car, requiring several years of driving before achieving a net environmental benefit.

Choose the correct heading for sections from the list of headings below.

The transport sector is currently responsible for nearly a quarter of global carbon dioxide emissions, making it a primary target for environmental regulators worldwide. For over a century, the internal combustion engine (ICE), fueled by petroleum, has dominated global transit. However, the ecological toll of this dominance—ranging from urban smog to accelerated climate change—has forced a paradigm shift. Today, the automotive industry is undergoing its most radical transformation since the assembly line, driven by the urgent need to develop environmentally friendly vehicles that minimize or eliminate tailpipe emissions.

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Location: Paragraph C. "Furthermore, the simplicity of electric motors means BEVs require far less maintenance..."

Traditional cars powered by gasoline or diesel. The passage usually highlights their role in air pollution, greenhouse gas emissions, and global warming.

The action of reducing the severity or seriousness of something. (e.g., climate change mitigation)

The text asserts that early electric vehicles were abandoned primarily because gasoline became incredibly cheap and widely available. This matches the passage facts.

Pay attention to the grammar of the sentence. If the gap is after an adjective, you are likely looking for a noun . Common answer words in this passage often include infrastructure , emissions , efficiency , or sustainability . Vocabulary to Watch For

Pay attention to dates (e.g., the 1990s vs. the 2000s energy crisis) as many questions target these specific timeframes. Evolution of Hybrid Vehicles in the US | PDF - Scribd

Grid integration, renewable energy sourcing, and government policies. Part 2: Simulated IELTS Reading Passage

To help you locate the answers in the text, look for these keywords:

By mastering the vocabulary of sustainable transit and practicing the targeted strategies outlined above, you can confidently approach the "Environmentally Friendly Vehicles" passage and maximize your reading band score.

: Offers detailed answer keys and explanations for "Reading Practice Test 21." IELTS Material

The "Environmentally Friendly Vehicles" passage typically utilizes three distinct question formats. Here is how to approach each one systematically: Matching Paragraph Information