Which is the source of turpentine oil? |
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a) |
Gymnospermic wood |
b) |
Angiospermic wood |
c) |
Gymnospermic seed |
d) |
Angiospermic seed |
Which is the source of turpentine oil? |
|||||||
a) |
Gymnospermic wood |
b) |
Angiospermic wood |
c) |
Gymnospermic seed |
d) |
Angiospermic seed |
(a) Old pine stumps are still being distilled to some degree as a source of turpentine and resin. |