As a result of their annual survey, the National Geographic Society and an international polling firm GlobeScan gave India top rank in Greendex 2009 score. What is this score

Explanation

The correct answer is: It is a measure of environmentally sustainable consumer behavior in different countries. The Greendex score is an index developed by the National Geographic Society and an international polling firm GlobeScan to measure the environmentally sustainable behavior of consumers in different countries. It measures various factors such as energy consumption, modes of transportation, use of water, food choices, etc., to arrive at a score for each country. The index aims to encourage sustainable consumer behavior and promote a healthier planet. In the 2009 survey, India ranked first in the Greendex score, indicating that Indian consumers were among the most environmentally conscious in the world at that time.