Monitoring environmental parameters can policy makers determine a. the level of impact a human activity has on an environment b. how society feels about the proposed policy changes c. how frequently a specific environment is used for human activity d. all of the above

d. all of the above

Explanation:

Environmental parameters are generally included in the policies which are either framed by the government or the environmentalists so as to safeguard and protect the environmental resources.  The environmental parameters will include the impact of the activity of human beings over the environment. The changes occurring in the policies with respect to the changes occurring in the environment.  It also describes how a particular environment could be useful for human activity.

On the basis of the above explanation, d. all of the above is the correct option.

Monitoring environmental parameters can help policy makers determine all of above.

d

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.