Both. Some kinds are natural and some man-made.
Electricity can be either man made or occur naturally. A good example is an electric eel for a naturally occurring instance. Electricity that is man made can be in the form of hydroelectric power, wind power, or static electricity, generated by a Van De Graaff generator.
It is natural
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
Rubber is man-made but has natural agents.
Is limestone natural or man made
It is natural
Both. Some kinds are natural and some man-made.
Lightening is natural. Electrical circuits are man invented and made.
all the kitchen supplies like microwave and fridges and televisions and of course light. By 'natural electricity' I presume you mean electricity not deliberately generated by man-made generating stations etc. There are lightning flashes and some fish that stun by internally-made electricity.
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
natural feature
Is limestone natural or man made
Man-made and Natural Resources
it is all natural
Rubber is man-made but has natural agents.
No "NATURAL" calamities are man made.