Subduction Zones Are Downgoing Convection Cells in the Earth but Only

question 23

True/False

Subduction zones are downgoing convection cells in the earth but only carry oceanic material into the mantle.

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Definitions:

Future Positions

Contracts to buy or sell a specific quantity of a commodity, currency, or financial instrument at a predetermined price at a future date.

Daily Settlement

The process of settling trades at the end of each trading day, including the calculation of gains and losses.

Maintenance Margin

The minimum amount of equity that must be maintained in a margin account after a purchase has been made, in order to keep the account open.

Trader's Margin

The amount of equity contributed by a trader as a percentage of the current market value of the securities held in a trading account.