Earth Hour, the voluntary one hour blackout observed by 187 countries on 23rd day of March every year, to mark a battle against global warming, was first organized by which organization of the following:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → World Wildlife Fund for Nature
Earth Hour was started by WWF (the World Wide Fund for Nature, earlier called the World Wildlife Fund) in Sydney, Australia, in 2007. People, offices and landmarks switch off their non-essential lights for one hour, from 8:30 to 9:30 p.m. local time, on a Saturday near the end of March (23 March in 2024, 22 March in 2025), to show their support for action against climate change.