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Practice Reading: Multiple Choice, Single Answer ID: #34938 Greenhouse gases
Instructions ›
Read the text and answer the multiple-choice question by selecting the correct response. Only one response is correct.
Greenhouse gases arise from a wide range of sources and their increasing concentration is largely related to the compound effects of increased population, improved living standards, and changes in lifestyle. From a current base of 5 billion, the United Nations predicts that the global population may stabilize in the twenty-first century between 8 and 14 billion, with more than 90 percent of the projected increase taking place in the world’s developing nations. The associated activities to support that growth, particularly to produce the required energy and food, will cause further increases in greenhouse gas emissions. The challenge, therefore, is to attain a sustainable balance between population, economic growth, and the environment.

The global increase in greenhouse gases has been attributed to

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Result:

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Option 1: "Trends in population and lifestyle."

Explanation: The text clearly states that the increasing concentration of greenhouse gases is largely related to the compound effects of increased population and changes in lifestyle. This directly supports the idea that trends in population and lifestyle contribute to the rise in greenhouse gases.

Option 2: "Reduced rainfall in many parts of the world."

Explanation: The text does not mention reduced rainfall as a factor contributing to greenhouse gas emissions. This option introduces information that is not present in the text, making it irrelevant.

Option 3: "Industrial pollution in developing countries."

Explanation: While the text discusses population growth in developing nations, it does not specifically attribute greenhouse gas increases to industrial pollution. This option presents a narrow view that does not encompass the broader factors mentioned in the text.

Option 4: "Coal mining and electricity generation."

Explanation: The text does not specifically mention coal mining or electricity generation as direct causes of greenhouse gas increases. This option is too specific and does not align with the general trends of population and lifestyle changes highlighted in the text.

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