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The number of AIDS effected people in India is more than 3 millions.  The number is so dangerous that many people in India even don’t know the have AIDS. The rate of increase in AIDS effected people are going down and it a hopeful news for us.  In the city like Kolkata the control board [...]

What is the approximate population of world by 2050?
It is nearly 6.6 billions.
What is the accepted population of world by 2050?
According to Unesco it’ll more than 9.2 billions.
In this world, Number People living in urban area is greater than number of people live in rural area- is it true?
False
Is the fertility of women in the [...]