Where was the World Summit on Sustainable Development (Rio + 10) held?
- ADavos
- BNova Scotia
- CJohannesburgCorrect
- DShanghai
Explanation
The correct answer is C because the World Summit on Sustainable Development, commonly known as Rio plus 10, was held in Johannesburg, South Africa, in 2002. This summit took place ten years after the original 1992 Earth Summit in Rio de Janeiro. Its primary goal was to review the progress made on the goals set in Rio and to focus on poverty eradication, sanitation, and sustainable resource management. Options like Davos, Nova Scotia, and Shanghai did not host this specific United Nations milestone event.

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