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How trees change the atmosphere

Rising from trees into the atmosphere, isoprene—a colorless, volatile, carbon-containing compound—smells vaguely like tires. It helped give the Blue Ridge Mountain range its name and has a profound effect upon the chemistry ...

dateDec 01, 2016 in Earth Sciences
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Nitrogen in ancient rocks a sign of early life

Nitrogen is one of the essential nutrients of life on Earth, with some organisms, such as the kinds of microbes found within the roots of legume plants, capable of converting nitrogen gas into molecules that other species ...

dateNov 29, 2016 in Earth Sciences
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