Composition of the Atmosphere extended definition. The atmosphere contains many gases, most in small amounts, including some pollutants and greenhouse gases. The most abundant gas in the atmosphere is nitrogen, with oxygen second. Argon, an inert gas, is the third most abundant gas in the atmosphere.
(CNN)Iran has completed the necessary steps in a deal to restrict its nuclear program, meaning international economic sanctions are lifted, officials from the EU and the U.N. nuclear watchdog agency said Saturday. Relations between Iran and the IAEA now enter a new phase.
In contrast, the derailment of talks would be welcomed by some of the loudest proponents of rushing to legislate new sanctions. Why Now is Not the Time for New Sanctions on Iran Dylan Williams November 4, 2013. Security-camera footage capturing the derailment, which can be viewed here is pretty horrifying.