Question 9 10 poin
The record of North Atlantic Power Dissipation (PDI) from 1949 to the present day indicates which statistically significant (r2 -0.80) trend in hurricane activity?
O a rise in annual sea surface temperature (SST) by 2°F
an rise in average PDI since approximately 1990
O a huge jump in the data that indicates flooding is virtually certain in 2020
O a decrease in hurricane intensity over the most recent two decades
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i think the answer is

mass

if you know your abc's you should be able to get your answer or just use google

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.