Which Explains the Relationship Between the Gas Pressure Gradient of the Atmosphere

question 13

Multiple Choice

Which explains the relationship between the gas pressure gradient of the atmosphere and the alveolar air that allows inhalation?

• A) When atmospheric pressure is less than the pressure within the lung, air flows down this gas pressure gradient. Then air moves from the atmosphere into the lungs.
• B) When atmospheric pressure is greater than the pressure within the lungs, air flows down this gas pressure gradient. Then air moves from the atmosphere into the lungs.
• C) When atmospheric pressure is greater than the pressure within the lung, air flows away from this gas pressure gradient. Then air moves from the lungs out into the atmosphere.
• D) When atmospheric pressure is less than the pressure within the lung, air flows up this gas pressure gradient. Then air moves from the atmosphere into the lungs.

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Definitions:

Reporting Dealers

Financial institutions that are involved in the foreign exchange markets, providing detailed data on market activity to central banks.

Spread

The difference between the buy and sell price for a currency.

Foreign Exchange Trade

The act of buying and selling currencies with the aim of making a profit from the changes in their exchange rates.

Buy and Sell Price

The price at which an item can be purchased and the price at which it can be sold, respectively.