Which of the following is NOT a factor that affects the apparent brightness of a star as seen from Earth? a. how old the star is c. how hot the star is b. how big the star is d. how far away the star is ____ 86. 21. ANS: C 22.
Wikipedia defines a systems integrator as follows: âA systems integrator is a person or company that specializes in bringing together component subsystems into a whole and ensuring that those subsystems function together, a practice known as system integration.â.
An oxygen concentrator is a medical device used to deliver oxygen to those who require it.People may require it if they have a condition that causes or results in low levels of oxygen in their blood.n oxygen concentrator has a compressing element, but it should not be confused with compressed oxygen or an oxygen tank. Whereas a tank has a set amount of oxygen that it dispenses, a concentrator filters in air, compresses it, and delivers air continuously.