Practical Applications
## Helping Our Planet
Actions you take can help protect Earth's systems:
- Reduce, reuse, recycle to limit waste (geosphere and biosphere).
- Save water to help the hydrosphere.
- Plant trees to clean the air (atmosphere and biosphere).
## Small Changes, Big Impact
Even simple choices, like turning off lights when you leave a room, make a difference!
Examples
- Picking up litter at a park.
- Starting a compost bin at home.