This volcano has a extremely acid crater lake and possibly the strongest sulphur vent in the world.

该火山深湖酸性极强其硫磺含量可能是世界上最高的。

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By 1897 a synthetic derivative (acetyl salicylic acid) of the plant's active ingredient (salicin) was created. This allowed aspirin to become the most widely used medicine in the world.

1897年，这种植物中的有效成分的人工合成衍生物诞生了，于是阿司匹林变成了世界上应用最广泛的药品。

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The abandoned Richmond Mine in California has the most acidic waters in the world, courtesy of underground microbes that consume sulfides and excrete sulfuric acid.

美国加州被废弃的里士满矿，拥有世界上酸性最强的水，这种强酸性是地下的微生物消耗硫化物并排出硫酸造成的。

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Acid attacks happen around the world, but they are most prevalent in South Asia.

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The system with a nitride semiconductor and a metal catalyst generates mainly formic acid from CO2 and water with light at a world's top efficiency of 0.2%.

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It also emits the most carbon dioxide and sulfur dioxide, making it the world's No. 1 contributor to global warming as well as acid rain.

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