Umm
This is to bunch of questions..
The appropriate response is Electrical Switches. These are electromechanical gadgets that are utilized as a part of electrical circuits to control, recognize when frameworks are outside their working reaches, flag controllers of the whereabouts of machine individuals and work pieces, give a way to manual control of machine and process capacities, control lighting, et cetera.
Butter to Margarine
Cakes baked with butter usually always turns out to be greasy and heavy.
Hope this helps, good luck! (:
