Anthropogenic Sources of Fixed Nitrogen Are Roughly Half the Amounts

question 15

True/False

Anthropogenic sources of fixed nitrogen are roughly half the amounts contributed by all other natural sources.

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Definitions:

Maintenance Margin

The minimum amount of equity that must be maintained in a margin account to continue holding an investment, after initiating a position.

Margin Call

A demand by a broker that an investor deposit further cash or securities to cover possible losses in a margin account.

Initial Margin

The minimum amount of funds or securities that must be deposited in a margin account before trading on margin, serving as a security for credit risk.

Securities and Exchange Commission

This is an independent federal government agency responsible for protecting investors, maintaining fair and orderly functioning of securities markets and facilitating capital formation.