| Average co2/year (in kg) | Answer | Hint | Average life in years | Growth rate | % Correct |
|---|---|---|---|---|---|
| 190 | Norway maple (Acer platanoides) | Widely used as ornamental tree | 150 | Fast | 75%
|
| 155 | Silver birch (Betula pendula) | In the Celtic tradition, this tree represented Spring | 80 - 100 | Medium | 75%
|
| 155 | Turkey oak (Quercus cerris) | Its wood was used in order to realise railway sleepers | >200 | Medium-slow | 75%
|
| 140 | Ash (Fraxinus excelsior) | Produces manna sugar, it was used during Middle Ages in order to fabricate spears | >200 | Medium | 50%
|
| 140 | Field elm (Ulmus minor) | Used for the production of furniture, objects, musical instruments | 500 | Fast | 50%
|
| 130 | Common alder (Alnus glutinosa) | It has ecologic functions in maintaining river ecosystems and riverbank consolidations | 150 | Fast | 25%
|
| 140 | Ginkgo (Ginkgo Biloba) | This tree is known for its ancient origins (>250m years ago), for this reason named as "living fossil" | >1000 | Slow | 25%
|
| 140 | European nettle tree (Celtis australis) | Tree which is widely spread in urban roads of southern Europe given its resistance to pollution | 120 - 140 | Medium-slow | 0%
|
| 140 | Large-leaved lime (Tilia platyphyllos) | Leaves, fruits and flowers are edible. "The salad of the trees" | >250 | Medium-slow | 0%
|
| 140 | Small-leaved lime (Tilia cordata) | Stratification is necessary in order to germinate seeds | >250 | Medium-slow | 0%
|