In 1972, the United Nations hold a meeting in Sweden
to share ideas about ways to take better care of for the
earth. At the summit, people from more than one hundreds
countries discussed some of the important problems faced
our planet. Since then, several Earth Summit had been held.
In 2002, the Earth Summit was held on Johannesburg.
One of the main theme was "sustainable development", or
the question what we can continue developing the world
without damage the environment. Most of the speakers
talked the three biggest killers in the world. | 1. _____
2. _____
3. _____
4. _____
5. _____
6. _____
7. _____
8. _____
9. _____
10. _____ |
