Trees
by Mayra Torres
1. Produce photosynthesis
1.1. We get oxygen from photosynthesis
1.1.1. The oxygen is used for breathing clean air
2. Produce wood
2.1. Used for furniture
2.1.1. Used for our confort
2.2. To make fire
2.2.1. To keep us warm
2.2.2. To cook food