Why do you place one hand under the base of the microscope as you carry it?

You place one hand under the base of the microscope to distribute the weight and not cause damage to the neck of the microscope where important pieces are. It also helps so you don't drop it, two hands are better than one.

not: both offer magnification to the atomic level.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.