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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 world increased in the last 50 years?

No. from 5.4 it’s decreased to 2.1.

What is the ratio of children : women in the world?

It is 2.1 : 1, i.e. for every women there is 2.1 children.

In this world, People growth in urban area is greater than that of rural area- is it true?

True

In this world, Number People living in dry area is greater than that of normal climatic condition - is it true?

True, almost 60% of world population lives in dry area like Africa and central Asia.

Due to advancement of medical science the average age of people is increased.

What will be the retired person’s ratio in 2050?

It is 1 : 3 . There’ll be one retired person for every there men in the world.

What are the top 5 challenge for world community to face the explosion of population?

1. Poverty
2. Security for food and job
3. Health
4. Environment
5. Housing and infrastructure

Source KOICHIRO MATSUURA,’s Articles