[audioFiles]2015m7s/audio_ezfj_007_20153[/audioFiles]

游客2023-11-05 53

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答案 The Greenhouse Effect
To get a better understanding of global warming,/it is important to understand the greenhouse effect./The greenhouse effect is the rise in the temperatures/caused by absorption of the Sun’s heat and light by the Earth’s surface/which then is reflected back and trapped within the Earth’s atmosphere./The greenhous es gases, help to keep the Earth warm,/and this is the reason why life on Earth has existed, and still thrives./However, with an increase in the gases like carbon dioxide, ozone,/and water vapor in the atmosphere,/as an outcome to growing environmental pollution;/industrial, domestic, and loss of vast stretches of grassland and rain forest,/Earth has gotten nearly 14% hotter/than what it used to be 50 years ago,/with 2005 being recorded as the hottest year ever./Besides humans and plants, global warming effects on animals is a cause of concern./

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