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The MTBE controversy concerns methyl tert-butyl ether (MTBE), a gasoline additive that replaced tetraethyllead. MTBE is an oxygenate and raises gasoline's octane number . Its use declined in the United States in response to environmental and health concerns.
Methyl tert-butyl ether (MTBE), also known as tert-butyl methyl ether, is an organic compound with a structural formula (CH 3) 3 COCH 3. MTBE is a volatile, flammable, and colorless liquid that is sparingly soluble in water. [ 1 ]
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Community and language. Six years ago, Wendy Ramirez and Jackleen Rodriguez co-founded Spanish Sin Pena, a safe space where adults can learn Spanish at their own pace.. After a student signs up ...
It is often assumed that young children learn languages more easily than adolescents and adults. [2] [5] However, the reverse is true; older learners are faster.For example, a study of 17,000 British students showed that those who started learning French aged 11 performed better than those who started learning it aged 8. [6]
A 16-year-old boy has kicked off a free speech debate—one that's already attracting spectators beyond his North Carolina county—after he was suspended for allegedly "making a racially ...
The public debate over the 2009 blockbuster film The Blind Side is getting messier.. Based on the 2006 nonfiction book by author Michael Lewis, the feel-good movie told the story of Michael Oher ...
Language Lessons holds a 96% approval rating on review aggregator website Rotten Tomatoes, based on 97 reviews, with a weighted average of 7.50/10. The site's critics consensus reads: "Language Lessons extols the value of friendship with a simple story rendered all the more effective by its pure spirit and the chemistry between its leads."