In 2010,128 countreis participated in earth hour
in 2010, 126 countries participated
I took part in earth hour and hope it saved the earth did you take part????
In 2011, Earth Hour saw participation from more than 135 countries and territories, with an estimated 1.8 billion people taking part. The event encouraged individuals, communities, and businesses to turn off non-essential lights for one hour to raise awareness about climate change and energy conservation. Major landmarks around the world also participated by turning off their lights during the hour.
There were about 135 countries that took part in Earth hour.
44 countries participated in the 1924 Summer Olympics. 16 countries participated in the 1924 Winter Olympics.
Earth Hour 2009 was carried out across 25 time zones, and involved 4000 cities in 88 countries.
71 countries participated at the 2010 Commonwealth Games.
44 countries participated in the 1924 Summer Olympics. 16 countries participated in the 1924 Winter Olympics.
67 countries first participated in the International Geophysical Year in 1957-1958.
names of countries that participated in the Beijing olyiumpics games 2008
11 Countries Participated in first Asian Games
46 countries participated in the Commonwealth Games in 1990