Oxygen Did Not Accumulate in the Early Atmosphere Until It

question 35

Multiple Choice

Oxygen did not accumulate in the early atmosphere until it reacted with reduced materials, especially ________, in the oceans.

• A) hydrogen
• B) elemental sulfur
• C) ferrous iron
• D) nitrate

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Definitions:

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a particular price.

Equilibrium

A state where supply equals demand in a market, resulting in no inherent force for price change.

Equilibrium Price

The market price at which the quantity of goods supplied is equal to the quantity of goods demanded, also known as the market-clearing price.

Shortage

A scenario in which the need for a product surpasses the amount available at a particular price.