]The diagram below shows the movement of water on Earth. The picture shows the oceans on the world map. Ocean water is shown flowing from east to west, from the Pacific Ocean past Australia and the Indian Ocean and around the southern tip of Africa. The ocean water then flows north along the coasts of Africa and Europe. A point in the water in the north is labeled A. The water finally turns south where the Atlantic Ocean meets the Arctic Ocean. The ocean water flows south along the coasts of North and South America. A point in the water in the south is labeled B. The water then flows from west to east, past Antarctica and Australia, before finally flowing north through the Pacific Ocean.

Which of these statements best explains why water flows from point A to point B?

The salinity at B is more than at A.
The wind velocity at B is more than at A.
The temperature at A is more than at B.
The water density at A is more than at B.

The salinity at B is more than A

Explanation: It just be how it be

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.