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.
The Iranian economy had suffered from the sanctions imposed in 2012. GDP fell by nearly 6% last year and inflation hit double digits, averaging some 39%. The sanctions imposed on Russia are targeted at freezing assets and imposing travel bans on key Putin allies. Russia is imposing like-for-like sanctions in return.