What gives wood its stiffness and strength?
non-woven fabric
cellulose
wadding
lignin
Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily. Chemically, lignins are cross-linked phenolic polymers. Lignin constitutes 30% of non-fossil organic carbon and 20 to 35% of the dry mass of wood.
reach: rather globalbotanyplantstrees
Answers by country
non-woven fabric
cellulose
wadding
lignin
answers
Estonia
10
Australia
20
Republic of Ireland
17
Greece
13
Switzerland
36
India
103
Pakistan
21
the Netherlands
18
Canada
23
Austria
118
Italy
13
Germany
388
France
14
Poland
3227
the United States
106
the United Kingdom
82