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.
Failure of U.S. adherence to the deal would not slow but would hasten an Iranian nuclear weapon. The Russians and Chinese would certainly not sustain economic sanctions. Sanctions by the other countries would erode as well. With all of this in mind, approving the agreement is a no-brainer.