A student made the table shown to list some contact and non-contact forces.

Examples of Forces
Contact Forces Non-Contact Forces
The force exerted by a stretched spring The force applied by Earth and sun on each other
The force exerted by a positive charge on a negative charge The force exerted on hair by a balloon rubbed on hair

Which statement best explains why the table is incorrect?
A. Spring force is a force acting at a distance.
B. Electrical force is a force acting at a distance.
C. Gravitational force can act between planets and sun only when they are in contact.
D. Electrostatic force is exerted by a charged balloon on hair when they are in contact.

is this a psat question, if so do not cheat try your best.

discord server for trading homework!

explanation: ill you out, join

layer 3 is younger than layer 6.

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.