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.
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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.
Much less people than needed.
around 12 million people have it world wide
over 8 million people world wide
About 130 million.
only 1