Agc peak has a retention time tr of 2.6 minutes and a half-width w1/2 of 5 sec. what is n for this gc system? would a gc system with a higher n value be considered more or less efficient?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.