According to this figure,which of the following can directly use atmospheric N2? 
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Form 8-K
Form 8-K is a report required by the SEC from publicly traded companies to announce significant events that shareholders should know about, including acquisitions, changes in management, and financial results.
SEC
The U.S. Securities and Exchange Commission, a federal agency overseeing securities transactions, stock markets, and investment practices.
Filing
The process of submitting documents, typically to a government or regulatory body, in accordance with legal requirements or procedures.
SEC
The Securities and Exchange Commission, a U.S. federal agency responsible for regulating the securities industry and protecting investors.
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