The diagram below illustrates the gas exchange that occurs in the alveoli.
Blood In
Alveoli
co. Out o In
Blood Out
Image by HelixB4
Where is the oxygen-rich blood flowing to?
the lungs
the upper body
the lower body
the heart

it is very expensive

explanation:

d statement

explanation:

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.