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Parts of a tree trunk
Author :
tekno TEKNESO
1.
The exterior layer of a tree trunk is...
A.
the bark
B.
the cambium
C.
the sapwood
D.
the heartwood
E.
the pith
2.
The thin transparent layer of a tree trunk is...
A.
the bark
B.
the cambium
C.
the sapwood
D.
the heartwood
E.
the pith