Increasing the alveolar ventilation rate will; a. increase the partial pressure of oxygen in the alveoli b. decrease the rate of oxygen diffusion from the alveoli to the blood c. increase the partial pressure of carbon dioxide in the alveoli d. decrease the rate of carbon dioxide diffusion from the blood to the alveoli.

Decrease the rate of carbon dioxide diffusion from the blood to the alveoli. (Ans. D)

Explanation:

Alveolar ventilation: Alveolar ventilation is explained as the exchange of gases which is present between the outer atmosphere and alveoli. In this ventilation process oxygen is entered into the lungs from the outer atmosphere because of this CO2 carried into the lungs in the blood is ejected from the body.

It is also defined as the amount of fresh air entering the alveoli per minute, a same amount of alveoli air leaving the body. So, it means while the alveolar ventilation rate is increasing the rate of carbon dioxide diffusion from the blood to the alveoli will decrease.

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

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