Are those which r concerned with extraction of wealth from air water n soil.
ex:agriculture...
HINGE AND BALL AND SOCKET
Some of the materials that are used in industry are textiles, plastic and rubber insulators and combustibles. Some combustible materials used in industry include coal and firewood.
Primary sector industries are involved in procuring naturally-occuring resources, applying little processing (or none at all). Some examples of primary sector industries include:Extraction of fossil fuels (such as crude oil).Timber/woodcutting.MiningFishingAgriculture
The advantages of being a first mover in an industry is that you compete directly with the already established gurus.
farming,mining,lumbering,hunting,fishing are some examples of extractive industry.
some examples of a cottage industry are a mango preservatives, seamstress, joiner etc.
fbfhf
for instance cement,fragrance industry etc..
tank construction
Some examples are: - chemical industry - mechanical industry - metallurgy - mining - energy production - wood industry - textiles industry - electrotechnical industry - vehicles industry etc.
farming,mining,lumbering,hunting,fishing are some examples of extractive industry.
writting