1. why have pcbs been so hard to clean up in puget sound and connected rivers? 2. what does the area by the storm water runoff drain in the pacific look like? 3. why is storm water runoff a problem for water pollution? 4. what are the arguments against regulations aimed at reducing water pollution? 5. how does land-use contribute to water pollution? 6. the video makes the case that all of us are polluters. do you agree or disagree with this? why? 7. thinking about agriscience, what impact does water pollution have (or potentially have) for agriscience and agriculture? 8. what are some ways that agriscientists can contribute to reducing water pollution?

option c is the correct answer.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.