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labour cost (more people (different skill (strength, experience, age,…
labour cost
more people
loneliness
no entertainment
boring
same job daily
same scene daily
to increase the out put
more money
tally the expense
work devision
different skill and strength needed
more work
manual works
different skill
strength
experience
age
weaknesses
knowledge
braveness
limited time
time is money
perishable
market demand
limited space
expense
needed situations
natural calamities
accidents