A little effort makes a huge difference.
Given below are the names of some environmentalists who strived for a sustainable earth for everyone. Find out more details about them and complete the table.
| Sl. No | Name of the Environmentalist | Their Contribution |
|--------|------------------------------|---------------------|
| 1 | Sunderlal Bahuguna | |
| 2 | Saalumarada Thimmakka | |
| 3 | Tulsi Gowda | |
What is the biggest challenge faced by our world today?