During a physical examination, joe learns that his resting tidal volume is 500 ml; his average resting respiratory rate is 12 breaths per minute; his total lung capacity is 6000 ml; and his anatomic dead space is 150 ml. joe's resting alveolar ventilation is
a. 72.0 l/minb. 6.0 l/minc. 4.2 l/mind. 1.8 l/mine. 0.5 l/min

Option C

Explanation:

Given -

Tidal volume is equal to ml

Average resting respiratory rate is equal to breathes per minute

Anatomic dead space volume is equal to   ml

As we know -

Resting alveolar ventilation

Where TD represents tidal volume and ADS represents Anatomic dead space volume

Substituting the given values in above equation, we get -

L/min

Hence, option C is correct

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.