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Q: How many years did it take to reach 1 billion People?
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How many years will it take to get 9 billion people in the world?

By 2050 we should reach around 9.1 billion people.


There are how many people in the world?

In 2012 the world population will reach 7 billion.


When you see a galaxy 8 billion light years away you are how many years into the past?

8 billion light years means that the light has taken 8 billion years to reach you. That's how far into the past you are seeing.


How many people there are in the world?

In 2012 the world population will reach 7 billion.


How many living people live on earth?

7 billion people inhabit the earth. By 2050 the number is expected to reach 9 billion.


How many years does it take for spent nuclear fuel rods to reach safe levels of radioactivity?

1 billion years


How many years will we get a message from the T2003 1529 galaxy?

Since T2003 1529 is a spiral galaxy 12.7 billion light years from us, it will take 12.7 billion years for the message to reach its intended designation (and an additional 12.7 billion years years for any reply from an alien civilization).


How many years after the total assets of Americas mutual funds hit 1 billion did it take for them to reach 1 trillion?

45 years


How many years will we get a message from the T2003 767 galaxy?

Since T2003 767 is an elliptical galaxy 12.5 billion light years from us, it will take 12.5 billion years for the message to reach its intended designation (and an additional 12.5 billion years for any reply from an alien civilization).


How many years will we get a message from the MDC2010 1721 galaxy?

Since MDC2010 1721 is a dwarf galaxy 13.1 billion light years from us, it will take 13.1 billion years for the message to reach its intended designation (and an additional 13.1 billion years for any reply from an alien civilization).


How many years will we get a message from the T2003 1423 galaxy?

Since T2003 1423 is a spiral galaxy 12.5 billion light years from us, it will take 12.5 billion years for the message to reach its intended designation (and an additional 12.5 billion years for any reply from an alien civilization).


How many years equal a billion years?

A billion years equals a billion years. 1,000,000,000 years