Living organisms need nitrogen as a central building block for protein formation, for example. However, although our ...

Air pollution has become an ever-pressing issue since the Industrial Revolution began in the mid-18th century. Progressive ...

Christopher Sepulvado had been on death row since 1993 and was due to be executed next month by nitrogen hypoxia.

As one moves up the food chain and starts consuming meat, the ratio of heavy nitrogen to light nitrogen starts increasing. In this case ratio remains low, which implies that this group consumed a ...