environmental sustainability

5. Invisible rays emitted by the sun which can be harmful
7. The global movement that started in 2007 that encourage people to switch off their lights to call attention to climate change
8. Kills marine life and takes very long to decompose
12. The process of removing salt from water
14. what is the name of the international treaty on climate change
16. What is our main source of energy
18. The hole in a layer of the earth atmosphere is called?
19. A cheap and fuel efficient way to travel
20. In july 2021, singapore opened the large scale floating solar panel at ______ Reservoir
21. The presence in or introduction into the environment of a substance which has harmful effects
22. Another word for fauna

1. A way to travel which has 2 wheels and uses no fuel
2. What alternative energy is powered by the sun
3. When people travel in the same car to the same destination
4. Car powered by power-electric engine
6. what petrol do you use to reduce the amount of lead in the air
9. One of the key pillars. Energy _____
10. how many key pillars are there in the Singapore Green Plan
11. Another word for flora
13. Greenhouse gases contribute to something called
15. A building in which plants that needs protection from cold weather are grown
17. To use something for a different purpose to the one for which it was originally intended for