Trees
Deciduous trees shed these during the winter or dry season.
Leaves
Coniferous trees are known for dropping these seed-bearing organs.
Cones
All trees are perennial plants, meaning they live at least two or more of these.
Years
The type of tree has foliage that remains functional and generally green throughout the entire year, through any season in its native habitat.
Evergreen
Trees remove this chemical compound from the atmosphere, turning it into oxygen.
Carbon Dioxide