over 180 Million worldwide have their credit card details locked into an iTunes account, as for the exact amount of users its hard to calculate
According to the Wikipedia article on Earth Day (related link below) approximately 20,000,000 Americans participated in the first Earth Day.
It is 80 km wide and 500 km long.
No. It was not number one.
As per trends, popularity and quality there are numerous companies dealing in this area world wide
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apple iphone
6.8 Billion people world wide.
The iPhone 4S.
2 people
55,000
Which university?
1.2milloin people are thought to be starving world wide.
around 12 million people have it world wide
Much less people than needed.
over 8 million people world wide
3.5 million a year
there are about 7million world wide