sustainability

2. a number of activities put together to reach a certain goal.
4. a fancy word for animals.
8. when a species is close to not existing anymore.
10. when something or someone keeps safe from harm.
13. when plants and other organisms use light to make their food.
14. a large area that is grassy, with few trees in tropical areas.
15. edible plants that are grown in big numbers.
17. when the wind or water slowly destroys something like a landscape.
18. destruction of the forest.
21. a way to keep something for a long time.
22. Gases surrounding the Earth or another planet.
23. an animal that has hair or fur, and females don't have eggs, and produce milk for their baby.
24. a system of living things.

1. forests where rain falls all the time.
3. the natural home for an animal, plant or organism.
5. plural of fungus.
6. a landscape full of grass.
7. an instrument that uses Earth's magnetic forces to guide you in the correct direction.
9. a big land with very little rain and plants.
11. when you protect something from harm or destruction.
12. a fancy word for plants.
16. a land with a lot of trees
19. a small arthropod animal that has six legs and two wings
20. lands with a lot of swamps